This truck has 3.73 gears!! , my 2018 has 4.11, Higher gears are due to Increase in Power down low in the power band. My 6.0 with 4.11 and stock size tires ( Michelins) gets about 13.6 on highway ( average) at 68 mph. I am betting this does that at least. I have buddy with the 6.6 and now 35K miles and doesnt use oil.... I think that's old AFM talk from the 5.3 engines.
Just bought a 2021 with 6.6 gas. Towing a fully loaded camper at 8500lbs I get about 10mpg depending on road conditions. Maybe a little more. Just a bed full of camping supplies and full of passengers I get almost 18mpg. Love the truck.
Wow only 10pm while pulling the trailer! Makes me want to buy the duramax instead of gas! I’m currently in a 6.2l 1500 Sierra and I get 6-7mpg it’s absolutely terrible on mpgs. Pulling my 28ft travel trailer feels fine just terrible on mileage and I want to get better mpg so was looking at the 6.6 duramax
@@luisvasquez8690 diesel 10k more up front, fuel cost more, maintenance cost more. So if your just worried about fuel mileage instead of actual money savings...then go with diesel
I love my 06 GMC Sierra 2500HD SLT L18 8.1 with the 6 speed Allison behind it. 235k miles and drives like new. 13.5 hwy, 9 town but love it! I am a big block freak back since the 396-427 era in Midyear vettes. Soon a big block will be a large frame electric motor😡
I think the 10 speed allison in the 6.6 gas will make a huge difference for towing. Nothing like being in the right gear and and power range for the engine.
Itll be night and day if tuned right.. no it wont be a diesel some people are crazy w that. Or.maybe turbo it lol.. how would the diesel be without the turbo?
I’ve had them both in the current generation (2020 Duramax and now have a 2022 6.6 gas). Both crew cab, 4WD, short bed with 20s. The power difference is no comparison but I feel that’s to be expected comparing a turbo diesel to an NA small block. With that said the 6.6 gas is definitely no slouch, and at least in these new trucks empty driving there’s not much of a difference. You got to remember the 2020+ diesels weigh over 8,000 pounds! So they’re a little slower than the previous generation. Anyways, I daily drive my truck, and driving to work (30 mile round trip on 2 and four lane highways, lots of curves and hills) from speeds ranging from 35-65 mph my gas truck gets 14-15 mpg. The diesel got 16-17. Towing my 8.5’x24’ enclosed car trailer my gas truck gets 8.4-8.6 mpg and the diesel got 10.4-10.7. That’s on the same trip, same load (250ish mile round trip, lots of 6 and 7% grades and one 8%) and for lack of a better term, roads basically like a roller coaster. On mostly interstate trips and speeds my gas gets 17 and my diesel got 20. So pretty much 2 mpg better in most situations and 3 on a trip. I don’t miss the diesel. I can still maintain or beat the posted speed limits on my racing trips (55 and 60 mph). Now sure, the diesel pulled the grades easier, especially the 8% but my gas truck does it. The problem with the gas trucks is the 6L90 needs another gear between 2nd and 3rd. That 2024 with the 10 speed Allison will have solved that problem. For example on my 8% grade, it goes for 2 miles. 3rd gear is just too tall of a gear to pull the mountain in and 2nd is too short. But what ends up happening is I go WOT at about 65 mph and when the grade really starts getting steep I start losing speed down to about 53 mph and 3000 rpm. I then get a downshift to 2nd where it gains back to 65 mph and a little over 5000 rpm but then upshifts to 3rd. Start losing speed back down to about 57 or so mph but by that time the grade starts leveling off and I’m over the hill. That 10 speed will absolutely fix that. Long comment but I’ve had them both. The diesel is nice, but the gas is no slouch and I’m not disappointed. I also have zero oil usage and I’m at 24,000 miles now. I do change oil at 3000 miles for what it’s worth.
Good synopsis Matt, When the time I right I will certainly replace my LLY duramax with a modern gas truck. Don't get me wrong, I love the diesel but with how rarely I drive it these days It just doesn't make much sense to own. Did you ever own a fairly recent (2015+) half ton? The new 400hp/500tq 3.5L ecoboost honestly seems like a good replacement for my truck. I only tow with a 7k GVWR 18' trailer. When I purchased it a few years ago I was going racing once or twice a month so it made sense, especially since I got a rust free diesel truck for only a couple grand more than a comparable GMT800 gasser.
@@TheeAbstractHero I have had a GM 1500 before. A 2016 and a 2021. The 2021 is a long story but ultimately it replaced my 2020 diesel that had problems because it’s all I could find to cash in on a stupid trade offer for my diesel and it ended up having a lifter failure which led me to my 2022 6.6 gas truck that I wanted originally when I got the diesel lol. Anyways, if your 18’ trailer is an open trailer the 1500s will do fine. Any of them really. However if you ever think you’re going to go with an enclosed trailer I’d advise you to stay with an HD. The GM 1500s will do it, but you know it’s there. I’ve had friends with recent F150 (2016) and he had terrible sway issues pulling a camper. But with an open trailer that would be a non issue and a half ton would be a lot cheaper to daily drive and be more comfortable too.
@@matthewanderson9912 unfortunately camper manufacturers pay little attention to weight distribution sometimes along with how people load weight for a trip. You want a few hundred pounds more infront of the axles with any trailer. I'm sure there's some fancy mathematical equation for it. I know pulling a 67 impala with my 03 gmc started getting squirrely around 40mph getting on the interstate. I hit the shoulder and pulled the car up about 6 inches and it was smooth sailing at 80mph 3 hours to where I was going.
@@nashvilleoutlaw definitely how they are loaded makes a difference. I always would rather have a little too much tongue weight than not enough. Not enough is dangerous. I’m sure there is an equation to figure it. I always just pulled on or into the trailer until I see my truck start taking weight. Once it did I went a little further and then called it good. One good thing with enclosed trailers is you have to pull them In far enough to get the ramp door to shut.
yep my experience as well. if it does teh 2-3 3-2 enough it limits power and just stays in 3rd to liek 2100 RPM even when you are WOT to protect the transmission.
I have one after having an L5p and Lml. It's perfect for me. the 6 speed is just fine. After driving 170 hp 350's with 3 speed automatics for many years, this works great for me. Keeping things in perspective helps.
I agree with most everything you said, especially the GMC looks much better in front. I have never had a diesel though. I went from a 2018, 6.0 2500 to a 22, 6.6 3500, I only have 2k miles on it. I tow a 12k gooseneck RV and recently purposely towed it up a mountain here in central PA just to see how it would do. Approx. 4 miles of 12% grade with 2 hairpin turns. It did better than I expected, until I had to slow for the sharp turns. It dogged pretty good until it kicked into low gear and picked up from there just fine. I get 14 - 15mpg driving same mountain to work every day. I get 7 - 9mpg when towing the RV. Again I haven't been spoiled by a diesel yet. I believe its about relativity.
I don’t understand why the keyboard warriors insist on comparing these gas trucks to diesels. If anything, compare it to the Ford 7.3L gas engine. There is a huge market for truck owners who need a HD chassis to pull campers or a compact tractor occasionally but don’t pull 20,000+ pounds every single day. Unless you pull heavy every single day it is hard to justify a diesel.
I went from a 6.2 liter gas to the Duramax and I am actually spending less for fuel now. With my 2013 Silverado, I was spending roughly $275.00/month on gas and now I am at about $180.00-200.00/month. Plus I can haul so much more with this truck. I am happy that I switched over to diesel.
I have a Chevy 2500 6.6 gas 2021. We race dirt bikes and pull a tow hauler a lot all over. Have been very happy with my purchase and as far as oil consumption I have not seen anything like this with mine I will tell you I am old school I change my oil every 3000 miles Mobil 1 so Mybe that’s helping me with that
Great review, I like the honesty about everything. Food for thought, I know 3 or 4 guys with that engine in their 2500s and 3500s and none of them have oil consumption problems. They all are used in a commercial environment, tow and haul heavy loads regularly, and generally work hard. Its common knowledge that 'how you break your truck in when new, dictates its quality of service'. Did the folks complaining of oil consumption issues drive their trucks off the lot and hook a 10,000lb fith-wheel up to it the next weekend and head into the hills? Have the guys complaining about ticking noises driven a modern Hemi RAM or 7.3L Ford Godzilla V8 lately?!? I think they are all quite smilar. That being said, most of those guys that own the 6.6L L8T complain that the 6 speed transmission is not up par as far as being energetic and smart. It's quite lackluster and they feel holds the engine/truck back quite a bit from its true capabilities. Let's hope the switch to the 10speed for 2024 behind the gas engine helps that issue. Just to curb the comments before they happen....NO, the 10 speed in the HD series trucks is NOT I repeat NOT the joint venture Ford/GM 10 speed found in the half tons. That is the 10L80, the HD version is the 10L1000. It will be the same basic unit thats behind the Gen2 L5P Duramax modified with slightly different components and TCM programming to accommodate the higher reving gas V8. Rubber side down guys, drive safe!!!
Some thoughts to consider #1: Gas engines warm up to operating temperature way faster than diesel. Getting the heat going in the winter will be way faster in the gasser. #2: I have an 03 Hummer h2 (6.0L) and an 03 LB7. Both engines are untuned, The H2 gets 9mpg, the Duramax gets 20mpg. Fuel cost wise the Duramax wins. #3: The gasser is an LS, give it some time and there will be plenty of aftermarket performance mods for it that will wake it up. My 6.0L jumped up from 316hp to 365hp on the factory tune just by converting to electric fans, cold air filter in the oem box, and a high flow exhaust system. LS engines are notorious for being detuned from the factory, and at least with the older engines they are in need of a mild cam swap to wake it up. I will say that the gen 4 6.2 LS was making 393hp back in 2008, so for a 6.56L to be that close in power these days tells me something is very poorly optimized with it and there is lots of room for improvement with aftermarket support. If you are not already familiar, Richard Holdner is great to learn from about LS stuff. #4: If you are tuning it, it will be very tempting to use higher octane fuel to get more power out of it nullifying big cost benefits in fuel. 87oc is pretty much trash, so you would want to go at least with 89 for your base fuel tune tables. #5: maximizing torque and hp rpm’s is key if you are trying to compete with diesel, if you are putting bigger tires on it be sure to regear your axles to compensate. The 10 speed would also help out a lot by always targeting the right rpm range for your desired power output. Hope this helps. Best of luck to you brother!
I live in northern Michigan we have cold winters I've ran diesel pickups for years the biggest reason why is the don't overheat with a snowplow on the front I've plowed with gasoline engine trucks over the years when you push them hard and do a lot of driving they get hot I've tried chevys, Fords and dodge's in gas engines and they all got hot
I have a 2020 6.6 and get 11-13mpg burns 1.5 quarts every 6,000 miles. I have 88,000 miles on it and have had no issues and rides very well and tows my 10,000lb trailer well, I like the truck a lot no reason to buy a duramax and deal with emissions in my opinion for my useage.
Got a 2022 2500HD 6.6 gas and it's a dream compared to the 1999 Jeep XJ I previously drove for 15 years. I can take it on a 3-5k mile trip without hesitation and it has plenty of power, room, and comfort to make my long trips easier. I'm happy with mine, at 35k miles now and love it.
I think it would be awesome to do a comparison video of a 6.6 liter gas vs 6.6 diesel. With the same 10 speed Allison. Side by side just gas vs diesel! My dad has a 14 gas 5.3 with a whipple supercharger and it puts like 500 to the ground. Puts a 30 ft trailer at 65 up inclines no problems! I’d love to see that on a newer gasser!
I have a 22 GMC duramax and a 22 GMC 6.6 gas. I use the diesel for towing my work trailer everday which weighs 15,000 lbs. I use the gas as a spare to pull a trailer when I need 2 trucks or my duramax is in for recalls. The gas is actually nicer to drive around town has more low end torque than the diesel until you get the turbo spooled up. The gas actually tows 15,000 lbs pretty good, if I towed occasionally I would definitely get the gas especially in MI during the winter its way nicer. The gas also gets 16.5 mpg on the highway the diesel gets 21mpg when empty.
Finally, someone answered my question. I pick my 24 GMC 2500 gas up next week. I was wondering how big of a fifth wheel I could tow a few times a year. Thank you
I bought a '22 GMC 2500HD gas for payload. No oil consumption as of yet, have averaged 14 mpg, with it in 4x4 much of the time. No issues with the truck at all as of yet.
I just pulled 10,800 lbs Bumper Pull 4 slide camper and it was fine only down shifted to 4th one time. And then I pulled in fifth the whole time no problem 70 mph . I was shocked. I got 17.3 mpg 2 hr loop and 18mpg 2hr highway loop empty other time. It was a 2023 6 speed 17inch rims. The acceleration got up to eighty like nothing. I guess they say the 7.3 Godzilla motor is even more bad ass. I was pretty impressed with the 6 6 Gasser and im a ford guy .
Don’t think it was really a marketing thing I mean when they designed it it was probably most efficient to make it around 6.56 liters with the way it was designed with bore and stroke so they rounded it 6.6 liters
I had a ‘21 6.6 gasser. It’s nice, good power, has payload/towing ability for everything I wanted/needed. I didn’t drive it a ton because I have a work car and I barely put 10k on it in two years. Ended up selling it and got myself an ‘07 LBZ. The 6L90 was supposed to be a beefed up/better 6L80. It wasn’t. I was seeing/hearing a lot of people having problems of bad clutch packs, bad TCs, etc. as early as 40k and needing new trannies. At the rate I was driving it, I was going to be well out of warranty if it happened to me. Truck still had equity so I went back to tried and true. I think the new “Allison” 10spd will fare better than the 6L90. Disclaimer: this is not to say all 6L90s suck and will go bad. I was seeing/hearing too many and I didn’t want to see my $60k truck get it with only 10k on the clock. I got almost $51k for it so I was happy with that.
Yeah, and like most manufacturers, they’re not going to recall anything. Just issue some TSBs, replace trannies on their coin, and call it a day. I loved that it was a simple truck, no DFM, no auto start/stop, 4.10 would’ve been better but the 3.73 was ok, but I think GM is realizing the 10spd is a good move for those things to be a viable option.
My uncle has a 2022 Custom with the 6.6 gasser. He likes it. He gets around 14 mpg and he drives like an old man. He pulled a camper out west with it and had to complaints about how it pulled. He got the same if not a little better fuel economy than his buddy towing with a 2018 duramax
I have had a couple diesels and I have seen enough of my friends dump enough money in their diesels just to keep them running, that I realized I do not want another diesel. Gas trucks are easy to work on, cheap to maintain, and inimitable purchase price is cheaper. It gets worse fuel mileage but diesel is more expensive so it’s a wash. It’s very nice just to put gas in the truck and not have to worry about random stuff breaking. I’d definitely try to get into a 24’ because it has the 10 speed that truck has the 6 speed. I’d also try the ford 6.8/7.3 since I think they are killing it right now in the HD gas trucks. I’ll be honest though, all the diesel guys always have the same impression you have that gas trucks have no power and can’t tow anything but gas trucks are the backbone of most fleets out there and get worked really hard. They will do anything a diesel can just not as fast
Yeah I was hoping you were going to drive the new 10 speed. I've got the brother to your truck a 18 high country Duramax and have been seriously thinking about the 24 gas 6.6 with the new 10 speed. Was really disappointed they didn't up the hp numbers along with updating the trans but like you said tons of potential for power to be unlocked in that gas 6.6. not to mention they're $10k cheaper lol
Almost 4 years since I purchased my 2020 2500 LT gas version. Love it sums it up. Fuel economy has been satisfying to me (14.5-17 mpg and best was 18 when empty mostly highway). Does everything I need and more including pulling out Toy Hauler. No oil burning happening, transmission runs buttery smooth, and yes the newly implanted 10-speed may help it get better economy, but that 6L90 6-spd. was one of their most reliable and they even beefed it up from the deep reading I did. Happy owner.
In 2016, I factory ordered a dually with the 6.0 gas engine to haul my slide-in camper that weighs about 4500 lbs when fully loaded. Didn't want the high cost of ownership and reliability issues of a late model diesel. This engine has been outstanding, despite being lower on horsepower than the subject in your video. In my case, I made the right choice.
Got a 2020 3500 dually 6.6 gas 75k miles no issues have 35x12.50s 3.5 inch level I get 12 unloaded going 70 on the highway 9 while towing 18k. I love the 6 speed truck needs 4.10 gears.
Came from an LML to a 22 2500 gas (LT crew cab short bed) and love it. I miss the diesel power, but not the problems. I love that there is NO engine management technology. It just runs. I have 17000 miles on mine and most of that is pulling a 5000pd trailer and I don't burn any oil. My around town fuel mileage is 14+, but you HAVE to baby it. It has tons of torque and moves out nice with very little throttle. It loves to drink though so if you stomp on it you can measure your speed by watching the fuel gauge. It rides and handles great too. No need to do a gas/diesel comparison. I expect anybody watching your channel is well aware of the differences.
I upgraded from a smaller truck to the 2022 Silverado 2500 HD LT with 6.6L gas, and I love it! especially for the price/value! got it new in 2021 for sticker price of $54000, but a lot less with my fathers GM employee discount. excellent deal considering 2021 shitshow. got it to tow our large travel trailer and it is my daily driver it does great! Only issue I have had was what the dealer said was needed was replacing some injectors in the first year/8k miles (under warranty) as it was misfiring. I get 14.5 mpg average, but only 9mpg pulling 9k trailer
The new 6.6 gas engine for payload what it can carry like a slide in camper. The 6.6 diesel is for hauling a like pull behind campers or heavy loads like a skid steer or small tractor. The thing here is that 10 speed transmission each one is set up different gas is different from the diesel. Great video thanks
Yeah , Before spending the money on one. I’d compare it’s gas rating mileage when towing and if ut sucks. I’d get a newer low mile ZR4 ZR2 or whatever it’s called. But the mini Duramax Colorado and hook it up with compounds. And use it
The newer LS/LT gas engines have a built in torque limiter that works with the newer all electronic transmissions. (in my opinion--prevents premature transmission failure) This is where you are experiencing the lack of hard acceleration. Should be able to shut this off by going into tow/haul mode or turning off traction control.
Who ever buys a truck and speed is a deciding factor is completely missing the point of owning a truck. That's like building a rifle chambered in .300 Blackout, putting a 6-36 scope on it, trying to hit 500 yds and are disappointed with the results. The 2500 HD is one hell of a truck, pair it with the Allison 10 speed and there should be ZERO complaints. ✌✌
I am an L8T owner that couldn’t be happier. I’ll burn around 1/2qt per 5k mile oil change. My 60mph two lane MPG average is 16.5mpg for my 20 mile one way commute. It pulls when I need it to, it drives well, and failure points are very low.
I have a 2022 2500 gas and yes, pulling a trailer works the truck pretty good. I have 35's on my and with a trailer i get around 9 to 10 mpg, maybe 11 if I'm on the open road.
I'm a 6.0L gas 2500 owner that made the move from an LBZ a few years ago. I pretty much had the same initial impressions. I ended up getting a custom tune for it and it made the driveability of it change a lot. It was a night and day different. I have pulled a 15k lb load with it a couple of times and it did it, but it struggled on the hills. The gas mileage is garbage. I average about 12.5 with a set of 34" tires with the tune. It was about 10-11 before the tune. The new 6.6 gassers are not tuneable so your stuck with what you get from the factory. I'm really hoping the new 10 speed can help with the fuel economy and acceleration. I have my doubts though. From what I've read the ford 7.3 with the 10 speed is just as bad on gas as the gm 6.6/6 speed.
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I've been a GM fan since I was 17, I'm 44. Everybody knows the first thing you do is get rid of torque management with a computer flash aftermarket of course then it wakes them up they run like they were supposed to
my dad has a 2021 denali l5p and he loves it more than his 2018 l5p. we do a lot of 3 hour trips and its really comfortable. the 10 speed shifts like butter. we went up to oklahoma which took about 5-6 hours towing a side by side and a fourwheeler, we could not feel it at all. i honestly prefer the diesel over the gas any day of the week
I own and 21 Sierra 2500 I put a set of 33s on it and I average about 12 mph after that. Me and my wife haul our 30 ft horse trailer that weighs about 10k empty and it handles it like a champ
I have a ram 3500 diesel, and I also own a 2023 model of this truck with the 6.6 gas For me it’s been great, even towing pretty heavy with it, I’m not burning any oil myself but time will tell, my diesel is actually up for sale because I love this truck, but I will be test driving the the 2024 with the 10 speed, to see if it’s worth upgrading myself
2024 Chevy 2500 with 6.6l gas. I pull a 18' trailer daily...weight is around 10k and it does just find. I didnt buy it for 0-60 times as the truck is almost 4 tons by itself. It does what I need it to do.
I must have the truck that was built on a Wednesday because my 2021 2500HD LT, Crew Cab, 4X4, 6.6 Gas gets around 14 MPG around town and 17 to 19 on the highway unloaded. Towed a 5,000lb trailer with a 2,800 lb VW on it and averaged and averaged about 14MPG at about 65 to 70 MPH. 25000 miles on it and my last oil change at 4500 miles on it had 8 quarts leave the pan.
My boss has the 3500 HD, it's a great truck gas 6.6 is great 👍 , best part is that it dosent have displacement on demand ,,, I think with a tune or a turbo and a tune it would be absolutely awesome
You should test drive the 7.3/6.8 Super Duties to compare to driving the 6.5 (calling it a 6.6 is definitely marketing). Would just make for a neat video. I don’t have a dog fight in the medium duty pickup game, just glad there’s options for everyone.
I went from a 20 l5p to the 7.3 gas ford and the gas definitely doesn’t have grunt that the any of the diesel’s have but it tows my 26k gooseneck just fine just have to get used to higher rpm’s
i live in colorado, a gas truck is totally worthless for towing no matter how much displacement its is, but if you put a turbo or SC on it then you might have a capable tow vehcile.
I have a 22 GMC crew cab long bed with the 6.6 gas, no the acceleration is not exciting but I have other vehicles for that, I have left mine all stock and have seen 19.8 mpg empty and 9 mpg towing my 10k lb toyhauler. For what it is I am very happy with the towing performance. I have right at 9k miles on it so far and have not noticed any oil consumption yet.
6.6 gas has been great for me, not a power house, but gets 16mpg empty doing 70 on the hwy with my crew3500. just drove it 3000k miles going through the Rockies towing about 7kbs. It did well.
I have a 22 with the duramax my youngest son has a 22 with 6.6 gas and my oldest son has the 7.3 godzilla. They are all impressive trucks. Pulling around 13000lbs they all maintain highway speeds 75mph with no issues and plenty of power left over. The gas trucks just hold a higher rpms and make a little more noise.
I have the 2021 2500 HD With the 6.6 gas engine. I traded in a 2017 with the 6.0 engine. Surprising to me is that I actually get the same gas mileage as the 6.0. About 15 miles around town. I also tow my boat which loaded with 250 gallons of fuel and equipment is approximately 11,000 lbs. No issue with power here. I do however wish I had waited for the 10 speed Allison transmission. I even asked the salesman and was told it was not available. As far as oil consumption I have not experienced that issue with 30,000 miles. I will keep an eye out for it however. Thanks for the video.
We own a 22 6.6 gasser. It feels gutless when driving it, but somehow it pulls our cattle trailer at 12k lbs loaded with relative ease. It just feels sluggish. I thought the same when I test drove a 22 Ram with a 6.4, it moves, but it feels slow.
This engine is torque sensing. You won't see full power released without a load. Been waiting for tuning options. Still happy with the driveability, though. Much easier passing at speed on the freeway than my previous 5.3 1500.
A couple subjective comments. Recently, I purchased a '24 Chevy Silverado 2500HD High Country 6.6l Gasser w/ 10-speed tranny, primarily to pull our 27' (32' exterior) bumper-pull toy hauler, which usually has a 1000-lb Harley strapped down in back. The 10-speed tranny is a game changer! It's awesome. The 3/4 ton gasser Chevy pulls our 10K-ish lb trailer just fine. It can maintain 70 mpg up 8% grades (which is the fastest that I'll ever pull my rig, due to the tire ratings). It'll downshift and be running pretty high RPM, but it'll pull it. The gasser certainly doesn't have the low-rpm torque of a diesel, but I don't feel that I need it. I certainly didn't want to pay the extra $10K for a duramax diesel, and pay the higher diesel fuel costs, and have to deal with DEF, and the higher costs of maintenance. Even though the mpg effeciency of a diesel is better than a comparably sized gasser, it'd take years to break even on the other costs. In my book, the only real plus to owning a diesel tow vehicle would be that I could use the straight-in diesel pumps at truck stops, instead of having to work my rig into gasoline pumps.
My wife and I test drove a 2023 gmc 3500hd srw with the 6.6 gas about 3 weeks ago and I wasn't impressed with the power at all.. it was a beautiful truck but we ended up going with a ram with the 6.4... power was noticeably better.
I had the 6.0 GMC but wanted something with more power for pulling our 5th wheel. I have an interest in the Duramax but didn't want to deal with all the stuff with a diesel. I ended up buying a rust free '04 Silverado with the 8.1L/Allison with 116k miles. It is an awesome driver for its age but like all the BB Chevy's, it likes oil and gasoline. While I would love a newer truck, I could afford this one and have no regrets buying it.
I have a 1999 2500 6.0 and a 2004 3500 8.1 the 8.1 in the 3500 does so much better then the 6.0. I also have a 2001 2500HD 6.6 Duramax lb7, with a K&N cold air breather only 98,000 miles and it does great.
It's a 6.6 gas. All I'm saying is, GM said we're not going to phase out the gas and diesel powered vehicles, according to Mark Reuss the President Founder of General Motors.
Probably have electric half tons soon enough. There isn't enough infrastructure yet for an electric HD market yet. Imagine running a plow, or winter driving in general, towing cross country and 90% rural.
what bothers me it is a direct injection only, it doesn't have dual injection like Ford and Toyota so at around 100000 miles you need to pull the heads to clean the intake valves, the 10-speed transmission is not an Allison transmission if you read the press releases from GM when the 10 speeds were introduced it is an Allison branded transmission that was developed in partnership with Ford.
I don’t know what GM was thinking not adding a port injector. I think there is going to be lost of problems down the road with carbon especially work trucks that idle a lot.
Ive got a 2023 AT4 6.6 duramax with a banks air intake, pedal monster and derringer. She is a beast!! I had a 3.0 duramax before this an it sucked the def fluid and so did my 2.8 durmax before the 3.0 but this 23' l5p is great on fuel and def fluid. My 2019 6.6 duramax was good on fuel but not the greatest on def fluid. I have no complaints about my AT4, I pull a boat a few times a week cuz I do a fishing charter. Ive owned my 23 for a little over 3 months an have 9k miles on her. No complaints man. Ive owned 2 LBZ's also, owning a diesel the only way to go.
The 2022 high country with the 6.6, on our first long trip , I got 16 mpg keeping the speed on interstate at 68 mph. This is a strong engine and pulls all I need. And yes I had a new duramax that lived in the shop. ENOUGH SAID!!!
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It's insane how horribly unreliable new diesel engines are. The emissions requirements have ruined them. Yes, they still perform well...when they're not in the shop. Anyone who tows trailers under 10K (which is most people, let's be honest) does not need a diesel.
I have both engines. On different trucks. The difference comes down to me . Drivability, over capability. The duramax is more capable. But it feels a little heavy. If i had to choose one. I prefer capability. And the front end has grown on me.
I just picked up a new 2024 2500HD. It is a Fantastic truck. Really comfortable truck for a trip . I have a 2006 2500HD Truck. It is a total Difference. I would have to give it a thumbs up so far.
Down side . Only has 6 speed tranny . Why do we need so many gears ? I know 2 ppl . 8 speed tranny . Both of them are having issues I got a dually . 5 speed . Im glad its not any more gears ! It would be constantly shifting up and down ! Ive had mine up to 100 mph . Still had more ! How fast do we need to go ?
I have a 2020 model and I hate the cylinder deactivation. Does your truck have cylinder deactivation or did ram also do away with them like Chevy did on their HD trucks?
I have 6.0 gas 2014 i do tile i load truck with 3 thousand pounds pallets all day plus trailer another 8 k 160 thousand miles dosent consume oil at all and actually took almost 40 thousand miles for engine to break in , so far no parts been replaced and actually brakes lasted me 150 thousand miles on it mpg yea is bad 12 to 16 highway
I have considered another purchase as well but still sticking with the diesel. I am considering a Silverado 1/2 Ton or Tahoe with the new 3.0 diesel. I worry about my 2014 Duramax being completely stock and the CP4 letting go on me. We take long trips and would welcome the mileage possible with a 3.0 version for those trips. The 5th wheel is staying at one spot at the beach for the time being so welcome better fuel economy. I know diesels cost more for repairs and maintenance, but after owning one, I don't see going back to gas in a truck anyway.
They make kits to mitigate the cp4 pump when it does exploded and it will. Hopefully your using fuel additives to lubricate the pump. How many miles you have on it?
Great video, thank you. I recently bought a Chevy 2500 HD after many years of driving Ford pick ups. I have also owned diesel trucks in the past so far, I’m very happy with the Chevy max towing for me, is probably around 14 K and the truck does very well with that. I don’t haul/tow every day, so the gas works perfect for me. It’s very early in my ownership experience with the Chevy, but so far I like it.
@@akaixl83 Still happy with my 6.6 Gas pickup. The truck works great for me. I tow less these days than I have in the past. Usually max towing is 10 to 12K for the load & the trailer. No issues thus far.
I have a 5 l 2018 Chevy 1st thing I did put a cold air system on it Headers, Outlaw dual exhaust system, 4.10 Gears, 7" lift 35 Mickey Over 400 horses And I can lay tracks on those 35,
I was gonna say before you found it they are pairing that 6.6 gas with the Allison so the economy and preformence mite be little different than with the 6 speed. I do agree with its hard to go back to gas and the maintenance and cost between the two its really hard to justify the difference and making the to either direction for the power and economy
It’s a great motor, company truck I drive at work. Got 20k miles and it gets Beat. Pull 25k lbs all over and rough roads at the company. Does Not have the power to tow like a duramax, but good for light loads. Gets 8 mpg maybe when towing. But it’s been dead reliable and gets used hard. Already bent a tie rod and the damn seat already has wear tear in it, very disappointing on the seat material on the 2022-2023s ngl(cloth). Really reliable truck but no comparison whatsoever to a duramax. 6spd is built well I think but it struggle to keep in the power band.
When you say "I'm not a hot shot trucker" and "looking for something simple", then you show nothing but Denali's and High Country trims... you lost me.
Former GM tech here, I'd 10x rather have the gas 6.6 vs the Duramax in a new truck. No DFM on the gasser (cylinder deactivate) or diesel emissions to worry about! The overall quality of the truck is frankly not great, though. Wiring issues are auper common even on low mileage units.
The problem with gas trucks is not having the ability to maintain highway speeds up steep slopes with a load, my duramax just keeps pulling and I dont have to down shift to maintain speed. I use less fuel in my diesel in the long run
A coworker of mine just got a new 2023 6.6 gasser. It’s the gmc Sierra at4. Beautiful truck. He loves it from his previous Toyota tundra. It has the 10spd trans I believe with I think he told me that it supposedly helped with the slower acceleration.
I have a GMC 2020 2500 work truck. Average 16 mpg I burn no oil. I pulled a 30 ft camper and hardly knew it was there. As far as pick up speed it is not a race car. My 5th GMC I love them. Like you said GMC front looks better. Thanks for the video.
i own a 2022 3500 hd single rear wheel with the 6.6 gas. i dont miss my duramax one bit. highway i average 18mpg and around 13 in town and 6 to 8 towing.
I've heard about the oil consumption I have a 2021 HD custom with the 6.6 of course and I have not used a drop I've already had three oil changes getting ready to do my 4th check the oil at least once a week it's right on the full
Peak torque is at 4000 rpm. Way higher then a diesel. The Chevy motors are high reving compared to the old school gas motors. They also need more rear end gear selections instead of just 3:73
I put 20k miles on a brand new 6.6 gas. Used it to pull 16000lbs. It towed and pulled and drove better than both my duramax trucks. I will never buy another duramax again. The new 6.6 motors are very strong, just not sure how long they will last. My 2015 6.0 gas with 130k already needs a new motor
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@@agentcarder my 2015 gmc 2500hd with 6.0 gas burns at least 1 quart of oil each tank of fuel. it has low oil pressure and low power. not much smoke out the tail pipe. its my daily driver and at 80mph its at 2500rpm on flat ground. it can barely pull a trailer
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Yeah I used to have a no 6 duramax that I didn't want to get rid of, but needed to.
This truck has 3.73 gears!! , my 2018 has 4.11, Higher gears are due to Increase in Power down low in the power band. My 6.0 with 4.11 and stock size tires ( Michelins) gets about 13.6 on highway ( average) at 68 mph. I am betting this does that at least. I have buddy with the 6.6 and now 35K miles and doesnt use oil.... I think that's old AFM talk from the 5.3 engines.
Hey did you send a message to discuss privately on telegram? Thanks
@@drewk5929 it’s a scam don’t reply to it
Do you have a scammer on here going by the name of TheTruckMaster_
The fact that it doesn’t have the active fuel management was the main reason I went with one.
Ya that system sucks
Yep spend 2000 getting mine replaced
Just bought a 2021 with 6.6 gas. Towing a fully loaded camper at 8500lbs I get about 10mpg depending on road conditions. Maybe a little more. Just a bed full of camping supplies and full of passengers I get almost 18mpg. Love the truck.
Wow only 10pm while pulling the trailer! Makes me want to buy the duramax instead of gas! I’m currently in a 6.2l 1500 Sierra and I get 6-7mpg it’s absolutely terrible on mpgs. Pulling my 28ft travel trailer feels fine just terrible on mileage and I want to get better mpg so was looking at the 6.6 duramax
@@luisvasquez8690 diesel 10k more up front, fuel cost more, maintenance cost more. So if your just worried about fuel mileage instead of actual money savings...then go with diesel
I may be wrong, but doesn’t the diesel only get 13ish mpg when loaded?
@@luisvasquez8690that’s the exact reason I went with the duramax couldn’t stand the awful fuel mileage while towing
I just got a '24 2500 hd 6.6l gas with 10 speed. Went from a broken down'06 duramax. The new truck does everything better including towing.
gm or chevy?
I think GM should bring back the 8.1. Or something close to it it. Nothing like a big block.
That would require common sense, I think corporate headquarters ran out of that years ago
I love my 06 GMC Sierra 2500HD SLT L18 8.1 with the 6 speed Allison behind it. 235k miles and drives like new.
13.5 hwy, 9 town but love it! I am a big block freak back since the 396-427 era in Midyear vettes.
Soon a big block will be a large frame electric motor😡
I agree.. I had the 454 and the 8.1 with the manual 6 speed it was fun to drive fuel mileage was about 11 loaded or empty.
AC on or off- no difference! Fuel mileage was a function of air volume going through the engine.
Here’s another idea, keep this new 6.6 gas and just turbo charge it. Torque would go way up and then might compete a little with diesel.
Just bought a 2024 sierra 2500. The 6.6 gas seems to run well. I pull a dump trailer and excavator. So far so good.
Have mine on order and the lack of the crappy fuel management is the reason I went with the 2500 over 1500
I think the 10 speed allison in the 6.6 gas will make a huge difference for towing. Nothing like being in the right gear and and power range for the engine.
Not much.
Itll be night and day if tuned right.. no it wont be a diesel some people are crazy w that. Or.maybe turbo it lol.. how would the diesel be without the turbo?
YEP 2024!
@@stephanhendricks71 wayy better. GM did funky "hybrid' converter things on this 6 speed. it pulls power ALL THE DAMN TIME to protect GM's mistakes.
I’ve had them both in the current generation (2020 Duramax and now have a 2022 6.6 gas). Both crew cab, 4WD, short bed with 20s. The power difference is no comparison but I feel that’s to be expected comparing a turbo diesel to an NA small block. With that said the 6.6 gas is definitely no slouch, and at least in these new trucks empty driving there’s not much of a difference. You got to remember the 2020+ diesels weigh over 8,000 pounds! So they’re a little slower than the previous generation.
Anyways, I daily drive my truck, and driving to work (30 mile round trip on 2 and four lane highways, lots of curves and hills) from speeds ranging from 35-65 mph my gas truck gets 14-15 mpg. The diesel got 16-17. Towing my 8.5’x24’ enclosed car trailer my gas truck gets 8.4-8.6 mpg and the diesel got 10.4-10.7. That’s on the same trip, same load (250ish mile round trip, lots of 6 and 7% grades and one 8%) and for lack of a better term, roads basically like a roller coaster. On mostly interstate trips and speeds my gas gets 17 and my diesel got 20.
So pretty much 2 mpg better in most situations and 3 on a trip. I don’t miss the diesel. I can still maintain or beat the posted speed limits on my racing trips (55 and 60 mph). Now sure, the diesel pulled the grades easier, especially the 8% but my gas truck does it.
The problem with the gas trucks is the 6L90 needs another gear between 2nd and 3rd. That 2024 with the 10 speed Allison will have solved that problem. For example on my 8% grade, it goes for 2 miles. 3rd gear is just too tall of a gear to pull the mountain in and 2nd is too short. But what ends up happening is I go WOT at about 65 mph and when the grade really starts getting steep I start losing speed down to about 53 mph and 3000 rpm. I then get a downshift to 2nd where it gains back to 65 mph and a little over 5000 rpm but then upshifts to 3rd. Start losing speed back down to about 57 or so mph but by that time the grade starts leveling off and I’m over the hill. That 10 speed will absolutely fix that.
Long comment but I’ve had them both. The diesel is nice, but the gas is no slouch and I’m not disappointed. I also have zero oil usage and I’m at 24,000 miles now. I do change oil at 3000 miles for what it’s worth.
Good synopsis Matt, When the time I right I will certainly replace my LLY duramax with a modern gas truck. Don't get me wrong, I love the diesel but with how rarely I drive it these days It just doesn't make much sense to own. Did you ever own a fairly recent (2015+) half ton? The new 400hp/500tq 3.5L ecoboost honestly seems like a good replacement for my truck. I only tow with a 7k GVWR 18' trailer.
When I purchased it a few years ago I was going racing once or twice a month so it made sense, especially since I got a rust free diesel truck for only a couple grand more than a comparable GMT800 gasser.
@@TheeAbstractHero I have had a GM 1500 before. A 2016 and a 2021. The 2021 is a long story but ultimately it replaced my 2020 diesel that had problems because it’s all I could find to cash in on a stupid trade offer for my diesel and it ended up having a lifter failure which led me to my 2022 6.6 gas truck that I wanted originally when I got the diesel lol.
Anyways, if your 18’ trailer is an open trailer the 1500s will do fine. Any of them really. However if you ever think you’re going to go with an enclosed trailer I’d advise you to stay with an HD. The GM 1500s will do it, but you know it’s there. I’ve had friends with recent F150 (2016) and he had terrible sway issues pulling a camper. But with an open trailer that would be a non issue and a half ton would be a lot cheaper to daily drive and be more comfortable too.
@@matthewanderson9912 unfortunately camper manufacturers pay little attention to weight distribution sometimes along with how people load weight for a trip. You want a few hundred pounds more infront of the axles with any trailer. I'm sure there's some fancy mathematical equation for it. I know pulling a 67 impala with my 03 gmc started getting squirrely around 40mph getting on the interstate. I hit the shoulder and pulled the car up about 6 inches and it was smooth sailing at 80mph 3 hours to where I was going.
@@nashvilleoutlaw definitely how they are loaded makes a difference. I always would rather have a little too much tongue weight than not enough. Not enough is dangerous.
I’m sure there is an equation to figure it. I always just pulled on or into the trailer until I see my truck start taking weight. Once it did I went a little further and then called it good. One good thing with enclosed trailers is you have to pull them
In far enough to get the ramp door to shut.
yep my experience as well. if it does teh 2-3 3-2 enough it limits power and just stays in 3rd to liek 2100 RPM even when you are WOT to protect the transmission.
I have one after having an L5p and Lml. It's perfect for me. the 6 speed is just fine. After driving 170 hp 350's with 3 speed automatics for many years, this works great for me. Keeping things in perspective helps.
Your 350 only made 170 hp??? 😬 Wow!! 😬 No wonder why you like this new truck so much! All the 350's I had made a hell of a lot more power than 170 😂😂😂
@@Westley909 80's TBI, but would easily go over 200K miles.
@@Westley909 The mid to late 70's into the 80's were some pretty dark days power wise but somehow we survived.
@@Formulabruce 😊
L31R 350 in my s10, it’s the last one gen1E vortec makes 270hp and 365tq
I agree with most everything you said, especially the GMC looks much better in front. I have never had a diesel though. I went from a 2018, 6.0 2500 to a 22, 6.6 3500, I only have 2k miles on it. I tow a 12k gooseneck RV and recently purposely towed it up a mountain here in central PA just to see how it would do. Approx. 4 miles of 12% grade with 2 hairpin turns. It did better than I expected, until I had to slow for the sharp turns. It dogged pretty good until it kicked into low gear and picked up from there just fine. I get 14 - 15mpg driving same mountain to work every day. I get 7 - 9mpg when towing the RV. Again I haven't been spoiled by a diesel yet. I believe its about relativity.
I don’t understand why the keyboard warriors insist on comparing these gas trucks to diesels. If anything, compare it to the Ford 7.3L gas engine. There is a huge market for truck owners who need a HD chassis to pull campers or a compact tractor occasionally but don’t pull 20,000+ pounds every single day. Unless you pull heavy every single day it is hard to justify a diesel.
No 6.8 ford gas.The 7.3 is a better engine....if it doesnt destroy itself like some are.
I went from a 6.2 liter gas to the Duramax and I am actually spending less for fuel now. With my 2013 Silverado, I was spending roughly $275.00/month on gas and now I am at about $180.00-200.00/month. Plus I can haul so much more with this truck. I am happy that I switched over to diesel.
Add DEF costs and and Lubrication for fuel to that cost. I love the Diesel, IF its needed....
@@Formulabruceexactly. May save on fuel, but the other costs will make that difference up easily
275 on gas is Rookie Numbers
Nah he’s a pro. He fills up once a month. Extreme experience right there
I spend that much on fuel a month in a Honda Civic!
I have a Chevy 2500 6.6 gas 2021. We race dirt bikes and pull a tow hauler a lot all over. Have been very happy with my purchase and as far as oil consumption I have not seen anything like this with mine I will tell you I am old school I change my oil every 3000 miles Mobil 1 so Mybe that’s helping me with that
How much does the toy hauler weigh?
Give or take about 10,000 lbs.
I switched to the 2500HD gasser back in '16. I love my diesels, but I'm over it with the emissions. Does everything i need it to do with zero issues
That’s exactly what I’m thinking! Practical and simple
@@TruckMaster Also, I'm not 100% sure on the 6.6 gasser, but i know the 6.0 gasser is super simple to throw a turbo on and get WAY better power
@@TruckMaster this truck only looks good because the epa has neutered diesels lol
I’m the same way, we gotta jump thru hoops because we want a diesel
If you would've dropped into tow mode it drives like a sports car 🏎
I have 6.6 v8 gasser 2020 everyday
Great review, I like the honesty about everything. Food for thought, I know 3 or 4 guys with that engine in their 2500s and 3500s and none of them have oil consumption problems. They all are used in a commercial environment, tow and haul heavy loads regularly, and generally work hard. Its common knowledge that 'how you break your truck in when new, dictates its quality of service'. Did the folks complaining of oil consumption issues drive their trucks off the lot and hook a 10,000lb fith-wheel up to it the next weekend and head into the hills? Have the guys complaining about ticking noises driven a modern Hemi RAM or 7.3L Ford Godzilla V8 lately?!? I think they are all quite smilar. That being said, most of those guys that own the 6.6L L8T complain that the 6 speed transmission is not up par as far as being energetic and smart. It's quite lackluster and they feel holds the engine/truck back quite a bit from its true capabilities. Let's hope the switch to the 10speed for 2024 behind the gas engine helps that issue. Just to curb the comments before they happen....NO, the 10 speed in the HD series trucks is NOT I repeat NOT the joint venture Ford/GM 10 speed found in the half tons. That is the 10L80, the HD version is the 10L1000. It will be the same basic unit thats behind the Gen2 L5P Duramax modified with slightly different components and TCM programming to accommodate the higher reving gas V8. Rubber side down guys, drive safe!!!
Some thoughts to consider
#1: Gas engines warm up to operating temperature way faster than diesel. Getting the heat going in the winter will be way faster in the gasser.
#2: I have an 03 Hummer h2 (6.0L) and an 03 LB7. Both engines are untuned, The H2 gets 9mpg, the Duramax gets 20mpg. Fuel cost wise the Duramax wins.
#3: The gasser is an LS, give it some time and there will be plenty of aftermarket performance mods for it that will wake it up. My 6.0L jumped up from 316hp to 365hp on the factory tune just by converting to electric fans, cold air filter in the oem box, and a high flow exhaust system. LS engines are notorious for being detuned from the factory, and at least with the older engines they are in need of a mild cam swap to wake it up. I will say that the gen 4 6.2 LS was making 393hp back in 2008, so for a 6.56L to be that close in power these days tells me something is very poorly optimized with it and there is lots of room for improvement with aftermarket support. If you are not already familiar, Richard Holdner is great to learn from about LS stuff.
#4: If you are tuning it, it will be very tempting to use higher octane fuel to get more power out of it nullifying big cost benefits in fuel. 87oc is pretty much trash, so you would want to go at least with 89 for your base fuel tune tables.
#5: maximizing torque and hp rpm’s is key if you are trying to compete with diesel, if you are putting bigger tires on it be sure to regear your axles to compensate. The 10 speed would also help out a lot by always targeting the right rpm range for your desired power output.
Hope this helps. Best of luck to you brother!
I live in northern Michigan we have cold winters I've ran diesel pickups for years the biggest reason why is the don't overheat with a snowplow on the front I've plowed with gasoline engine trucks over the years when you push them hard and do a lot of driving they get hot I've tried chevys, Fords and dodge's in gas engines and they all got hot
How did you do the electric fan conversion?
I have a 2020 6.6 and get 11-13mpg burns 1.5 quarts every 6,000 miles. I have 88,000 miles on it and have had no issues and rides very well and tows my 10,000lb trailer well, I like the truck a lot no reason to buy a duramax and deal with emissions in my opinion for my useage.
This is the stuff we need to hear. Thanks for sharing
I'm betting the largest part of that oil burn off falls within the 5-6000 range.
Got a 2021 Chevy gas 6.6 got 46k on it , Masonry work so it doesn’t have an easy life , great so far , it does what I need it to do .👍🏼
"it burns oil"
"I've had no issues yet"
Pick one
Got a 2022 2500HD 6.6 gas and it's a dream compared to the 1999 Jeep XJ I previously drove for 15 years. I can take it on a 3-5k mile trip without hesitation and it has plenty of power, room, and comfort to make my long trips easier. I'm happy with mine, at 35k miles now and love it.
I think it would be awesome to do a comparison video of a 6.6 liter gas vs 6.6 diesel. With the same 10 speed Allison. Side by side just gas vs diesel! My dad has a 14 gas 5.3 with a whipple supercharger and it puts like 500 to the ground. Puts a 30 ft trailer at 65 up inclines no problems! I’d love to see that on a newer gasser!
I have a 22 GMC duramax and a 22 GMC 6.6 gas. I use the diesel for towing my work trailer everday which weighs 15,000 lbs. I use the gas as a spare to pull a trailer when I need 2 trucks or my duramax is in for recalls. The gas is actually nicer to drive around town has more low end torque than the diesel until you get the turbo spooled up. The gas actually tows 15,000 lbs pretty good, if I towed occasionally I would definitely get the gas especially in MI during the winter its way nicer. The gas also gets 16.5 mpg on the highway the diesel gets 21mpg when empty.
Finally, someone answered my question. I pick my 24 GMC 2500 gas up next week. I was wondering how big of a fifth wheel I could tow a few times a year. Thank you
I bought a '22 GMC 2500HD gas for payload. No oil consumption as of yet, have averaged 14 mpg, with it in 4x4 much of the time. No issues with the truck at all as of yet.
I just pulled 10,800 lbs Bumper Pull 4 slide camper and it was fine only down shifted to 4th one time. And then I pulled in fifth the whole time no problem 70 mph . I was shocked. I got
17.3 mpg 2 hr loop and 18mpg 2hr highway loop empty other time. It was a 2023 6 speed 17inch rims. The acceleration got up to eighty like nothing. I guess they say the 7.3 Godzilla motor is even more bad ass. I was pretty impressed with the 6 6 Gasser and im a ford guy .
My 2001 2500hd 8.1 with Allison is still going strong. Stays hooked to a trailer and keeps it in the wind!
Don’t think it was really a marketing thing I mean when they designed it it was probably most efficient to make it around 6.56 liters with the way it was designed with bore and stroke so they rounded it 6.6 liters
I had a ‘21 6.6 gasser. It’s nice, good power, has payload/towing ability for everything I wanted/needed. I didn’t drive it a ton because I have a work car and I barely put 10k on it in two years.
Ended up selling it and got myself an ‘07 LBZ.
The 6L90 was supposed to be a beefed up/better 6L80. It wasn’t. I was seeing/hearing a lot of people having problems of bad clutch packs, bad TCs, etc. as early as 40k and needing new trannies. At the rate I was driving it, I was going to be well out of warranty if it happened to me. Truck still had equity so I went back to tried and true. I think the new “Allison” 10spd will fare better than the 6L90.
Disclaimer: this is not to say all 6L90s suck and will go bad. I was seeing/hearing too many and I didn’t want to see my $60k truck get it with only 10k on the clock. I got almost $51k for it so I was happy with that.
All valid reasons and nice choice getting the LBZ
The company my brother works for has all new 6.6 gassers and they’ve had to replace a lot of the transmissions.
Thank you, sir. Many of your videos helped me make that choice, especially since this is my first ever diesel and wrenching on one.
Yeah, and like most manufacturers, they’re not going to recall anything. Just issue some TSBs, replace trannies on their coin, and call it a day. I loved that it was a simple truck, no DFM, no auto start/stop, 4.10 would’ve been better but the 3.73 was ok, but I think GM is realizing the 10spd is a good move for those things to be a viable option.
The 6.6 gasser with a whipple screw blower is pretty awsome. And the 10 speed made a huge, huge difference towing.
My uncle has a 2022 Custom with the 6.6 gasser. He likes it. He gets around 14 mpg and he drives like an old man. He pulled a camper out west with it and had to complaints about how it pulled. He got the same if not a little better fuel economy than his buddy towing with a 2018 duramax
I have had a couple diesels and I have seen enough of my friends dump enough money in their diesels just to keep them running, that I realized I do not want another diesel. Gas trucks are easy to work on, cheap to maintain, and inimitable purchase price is cheaper. It gets worse fuel mileage but diesel is more expensive so it’s a wash. It’s very nice just to put gas in the truck and not have to worry about random stuff breaking. I’d definitely try to get into a 24’ because it has the 10 speed that truck has the 6 speed. I’d also try the ford 6.8/7.3 since I think they are killing it right now in the HD gas trucks. I’ll be honest though, all the diesel guys always have the same impression you have that gas trucks have no power and can’t tow anything but gas trucks are the backbone of most fleets out there and get worked really hard. They will do anything a diesel can just not as fast
All very valid points
Yeah I was hoping you were going to drive the new 10 speed. I've got the brother to your truck a 18 high country Duramax and have been seriously thinking about the 24 gas 6.6 with the new 10 speed. Was really disappointed they didn't up the hp numbers along with updating the trans but like you said tons of potential for power to be unlocked in that gas 6.6. not to mention they're $10k cheaper lol
Almost 4 years since I purchased my 2020 2500 LT gas version. Love it sums it up. Fuel economy has been satisfying to me (14.5-17 mpg and best was 18 when empty mostly highway). Does everything I need and more including pulling out Toy Hauler. No oil burning happening, transmission runs buttery smooth, and yes the newly implanted 10-speed may help it get better economy, but that 6L90 6-spd. was one of their most reliable and they even beefed it up from the deep reading I did. Happy owner.
That gas with the 10spd is a game changer
In 2016, I factory ordered a dually with the 6.0 gas engine to haul my slide-in camper that weighs about 4500 lbs when fully loaded. Didn't want the high cost of ownership and reliability issues of a late model diesel. This engine has been outstanding, despite being lower on horsepower than the subject in your video. In my case, I made the right choice.
Got a 2020 3500 dually 6.6 gas 75k miles no issues have 35x12.50s 3.5 inch level I get 12 unloaded going 70 on the highway 9 while towing 18k. I love the 6 speed truck needs 4.10 gears.
Thanks for sharing 👍
Came from an LML to a 22 2500 gas (LT crew cab short bed) and love it. I miss the diesel power, but not the problems. I love that there is NO engine management technology. It just runs. I have 17000 miles on mine and most of that is pulling a 5000pd trailer and I don't burn any oil. My around town fuel mileage is 14+, but you HAVE to baby it. It has tons of torque and moves out nice with very little throttle. It loves to drink though so if you stomp on it you can measure your speed by watching the fuel gauge. It rides and handles great too. No need to do a gas/diesel comparison. I expect anybody watching your channel is well aware of the differences.
I upgraded from a smaller truck to the 2022 Silverado 2500 HD LT with 6.6L gas, and I love it! especially for the price/value! got it new in 2021 for sticker price of $54000, but a lot less with my fathers GM employee discount. excellent deal considering 2021 shitshow. got it to tow our large travel trailer and it is my daily driver it does great! Only issue I have had was what the dealer said was needed was replacing some injectors in the first year/8k miles (under warranty) as it was misfiring. I get 14.5 mpg average, but only 9mpg pulling 9k trailer
The new 6.6 gas engine for payload what it can carry like a slide in camper. The 6.6 diesel is for hauling a like pull behind campers or heavy loads like a skid steer or small tractor. The thing here is that 10 speed transmission each one is set up different gas is different from the diesel. Great video thanks
Thanks Chad
Yeah , Before spending the money on one. I’d compare it’s gas rating mileage when towing and if ut sucks. I’d get a newer low mile ZR4 ZR2 or whatever it’s called. But the mini Duramax Colorado and hook it up with compounds. And use it
I just ordered 6.6 3500 4×4 52,000$ jax florida to Charlotte NC averaged 18.3 mpg at 70mph 7 ft bed 4 door I love it 😀
The newer LS/LT gas engines have a built in torque limiter that works with the newer all electronic transmissions. (in my opinion--prevents premature transmission failure) This is where you are experiencing the lack of hard acceleration. Should be able to shut this off by going into tow/haul mode or turning off traction control.
Who ever buys a truck and speed is a deciding factor is completely missing the point of owning a truck. That's like building a rifle chambered in .300 Blackout, putting a 6-36 scope on it, trying to hit 500 yds and are disappointed with the results. The 2500 HD is one hell of a truck, pair it with the Allison 10 speed and there should be ZERO complaints. ✌✌
I have the identical truck don’t tow much and all highway I have got 18 mpg. Coming of from the old 6.0 I’m extremely happy.
I am an L8T owner that couldn’t be happier. I’ll burn around 1/2qt per 5k mile oil change. My 60mph two lane MPG average is 16.5mpg for my 20 mile one way commute. It pulls when I need it to, it drives well, and failure points are very low.
I have a 2022 2500 gas and yes, pulling a trailer works the truck pretty good. I have 35's on my and with a trailer i get around 9 to 10 mpg, maybe 11 if I'm on the open road.
I'm a 6.0L gas 2500 owner that made the move from an LBZ a few years ago. I pretty much had the same initial impressions. I ended up getting a custom tune for it and it made the driveability of it change a lot. It was a night and day different. I have pulled a 15k lb load with it a couple of times and it did it, but it struggled on the hills. The gas mileage is garbage. I average about 12.5 with a set of 34" tires with the tune. It was about 10-11 before the tune. The new 6.6 gassers are not tuneable so your stuck with what you get from the factory. I'm really hoping the new 10 speed can help with the fuel economy and acceleration. I have my doubts though. From what I've read the ford 7.3 with the 10 speed is just as bad on gas as the gm 6.6/6 speed.
Buy a Prius if your worried about gas mileage.
And Ford likes to put rainbows and trans flags on raptors now.
A friend of mine has one he did long tube headers, a k&n air k&n air system, exhaust and a tune and man that woke it up big time
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I've been a GM fan since I was 17, I'm 44. Everybody knows the first thing you do is get rid of torque management with a computer flash aftermarket of course then it wakes them up they run like they were supposed to
my dad has a 2021 denali l5p and he loves it more than his 2018 l5p. we do a lot of 3 hour trips and its really comfortable. the 10 speed shifts like butter. we went up to oklahoma which took about 5-6 hours towing a side by side and a fourwheeler, we could not feel it at all. i honestly prefer the diesel over the gas any day of the week
I own and 21 Sierra 2500 I put a set of 33s on it and I average about 12 mph after that. Me and my wife haul our 30 ft horse trailer that weighs about 10k empty and it handles it like a champ
I have a ram 3500 diesel, and I also own a 2023 model of this truck with the 6.6 gas
For me it’s been great, even towing pretty heavy with it, I’m not burning any oil myself but time will tell, my diesel is actually up for sale because I love this truck, but I will be test driving the the 2024 with the 10 speed, to see if it’s worth upgrading myself
2024 Chevy 2500 with 6.6l gas. I pull a 18' trailer daily...weight is around 10k and it does just find. I didnt buy it for 0-60 times as the truck is almost 4 tons by itself. It does what I need it to do.
I have a 2019 ram2500 with the 6.4 and it's mildly built and tuned by Demon motorsports. I'd say it has plenty of power.
When I went form gas to diesel I will never go back to gas their is no comparison so I wouldn't buy gas powered
Did same 20 years ago. 👍🍺
True story
Just bought my first diesel a couple months ago. All tho its a 3.0L duramax. We will see how it goes
I went from diesel to gas 😆 6.7 powerstroke to 6.2. I do miss it but also happy with the switch.
Nothing like having a 700 hp duramax that still gets good mileage when driving it right
I must have the truck that was built on a Wednesday because my 2021 2500HD LT, Crew Cab, 4X4, 6.6 Gas gets around 14 MPG around town and 17 to 19 on the highway unloaded. Towed a 5,000lb trailer with a 2,800 lb VW on it and averaged and averaged about 14MPG at about 65 to 70 MPH. 25000 miles on it and my last oil change at 4500 miles on it had 8 quarts leave the pan.
My boss has the 3500 HD, it's a great truck gas 6.6 is great 👍 , best part is that it dosent have displacement on demand ,,, I think with a tune or a turbo and a tune it would be absolutely awesome
You should test drive the 7.3/6.8 Super Duties to compare to driving the 6.5 (calling it a 6.6 is definitely marketing). Would just make for a neat video. I don’t have a dog fight in the medium duty pickup game, just glad there’s options for everyone.
I’d be interested to see that as well.
they probably did it b/c the old 6.5L diesel they used to have put a bad taste in chevy peoples mouths.
@@stevencross8937 makes sense. I suppose, especially since the people buying the new 6.5s were younger when the old Chevy 6.5 issues were prevalent.
I went from a 20 l5p to the 7.3 gas ford and the gas definitely doesn’t have grunt that the any of the diesel’s have but it tows my 26k gooseneck just fine just have to get used to higher rpm’s
7.3 is the way to go great engine
i live in colorado, a gas truck is totally worthless for towing no matter how much displacement its is, but if you put a turbo or SC on it then you might have a capable tow vehcile.
I have a 22 GMC crew cab long bed with the 6.6 gas, no the acceleration is not exciting but I have other vehicles for that, I have left mine all stock and have seen 19.8 mpg empty and 9 mpg towing my 10k lb toyhauler. For what it is I am very happy with the towing performance. I have right at 9k miles on it so far and have not noticed any oil consumption yet.
6.6 gas has been great for me, not a power house, but gets 16mpg empty doing 70 on the hwy with my crew3500. just drove it 3000k miles going through the Rockies towing about 7kbs. It did well.
30k miles on it, no oil burn, and only complaint is the funky ass shifting it does.
6.6 gasser tows way better than you would think just driving it empty
I have a 22 with the duramax my youngest son has a 22 with 6.6 gas and my oldest son has the 7.3 godzilla. They are all impressive trucks. Pulling around 13000lbs they all maintain highway speeds 75mph with no issues and plenty of power left over. The gas trucks just hold a higher rpms and make a little more noise.
I have the 2021 2500 HD With the 6.6 gas engine. I traded in a 2017 with the 6.0 engine.
Surprising to me is that I actually get the same gas mileage as the 6.0. About 15 miles around town.
I also tow my boat which loaded with 250 gallons of fuel and equipment is approximately 11,000 lbs. No issue with power here.
I do however wish I had waited for the 10 speed Allison transmission. I even asked the salesman and was told it was not available.
As far as oil consumption I have not experienced that issue with 30,000 miles. I will keep an eye out for it however.
Thanks for the video.
We own a 22 6.6 gasser. It feels gutless when driving it, but somehow it pulls our cattle trailer at 12k lbs loaded with relative ease. It just feels sluggish. I thought the same when I test drove a 22 Ram with a 6.4, it moves, but it feels slow.
This engine is torque sensing. You won't see full power released without a load. Been waiting for tuning options. Still happy with the driveability, though. Much easier passing at speed on the freeway than my previous 5.3 1500.
We have 2021 gmc 3500 with the 6.6 gas and we have a Service body on it. We tow
26,000 pounds and we love it
This is what we need to hear thank you
A couple subjective comments. Recently, I purchased a '24 Chevy Silverado 2500HD High Country 6.6l Gasser w/ 10-speed tranny, primarily to pull our 27' (32' exterior) bumper-pull toy hauler, which usually has a 1000-lb Harley strapped down in back. The 10-speed tranny is a game changer! It's awesome. The 3/4 ton gasser Chevy pulls our 10K-ish lb trailer just fine. It can maintain 70 mpg up 8% grades (which is the fastest that I'll ever pull my rig, due to the tire ratings). It'll downshift and be running pretty high RPM, but it'll pull it. The gasser certainly doesn't have the low-rpm torque of a diesel, but I don't feel that I need it. I certainly didn't want to pay the extra $10K for a duramax diesel, and pay the higher diesel fuel costs, and have to deal with DEF, and the higher costs of maintenance. Even though the mpg effeciency of a diesel is better than a comparably sized gasser, it'd take years to break even on the other costs. In my book, the only real plus to owning a diesel tow vehicle would be that I could use the straight-in diesel pumps at truck stops, instead of having to work my rig into gasoline pumps.
A "Y" to test drive a 10 speed gasser....you WILL love the gearing as it totally makes up for the 4.11 to 3.73 change..
My wife and I test drove a 2023 gmc 3500hd srw with the 6.6 gas about 3 weeks ago and I wasn't impressed with the power at all.. it was a beautiful truck but we ended up going with a ram with the 6.4... power was noticeably better.
My 2023 6.6 gas has 25k and doesn't burn any oil and I gets 13-14city 16-18 hw...and I drive aggressive...my old 6.0 has only got 10 mpg
I had the 6.0 GMC but wanted something with more power for pulling our 5th wheel. I have an interest in the Duramax but didn't want to deal with all the stuff with a diesel. I ended up buying a rust free '04 Silverado with the 8.1L/Allison with 116k miles. It is an awesome driver for its age but like all the BB Chevy's, it likes oil and gasoline. While I would love a newer truck, I could afford this one and have no regrets buying it.
I have a 1999 2500 6.0 and a 2004 3500 8.1 the 8.1 in the 3500 does so much better then the 6.0. I also have a 2001 2500HD 6.6 Duramax lb7, with a K&N cold air breather only 98,000 miles and it does great.
It's a 6.6 gas. All I'm saying is, GM said we're not going to phase out the gas and diesel powered vehicles, according to Mark Reuss the President Founder of General Motors.
It’s hard to believe that during this whole electric car boom nowadays
@@TruckMaster I believe too, I'm glad GM will stick with the engines and beyond.
Probably have electric half tons soon enough. There isn't enough infrastructure yet for an electric HD market yet. Imagine running a plow, or winter driving in general, towing cross country and 90% rural.
what bothers me it is a direct injection only, it doesn't have dual injection like Ford and Toyota so at around 100000 miles you need to pull the heads to clean the intake valves, the 10-speed transmission is not an Allison transmission if you read the press releases from GM when the 10 speeds were introduced it is an Allison branded transmission that was developed in partnership with Ford.
I don’t know what GM was thinking not adding a port injector. I think there is going to be lost of problems down the road with carbon especially work trucks that idle a lot.
Ive got a 2023 AT4 6.6 duramax with a banks air intake, pedal monster and derringer. She is a beast!! I had a 3.0 duramax before this an it sucked the def fluid and so did my 2.8 durmax before the 3.0 but this 23' l5p is great on fuel and def fluid. My 2019 6.6 duramax was good on fuel but not the greatest on def fluid. I have no complaints about my AT4, I pull a boat a few times a week cuz I do a fishing charter. Ive owned my 23 for a little over 3 months an have 9k miles on her. No complaints man. Ive owned 2 LBZ's also, owning a diesel the only way to go.
The 2022 high country with the 6.6, on our first long trip , I got 16 mpg keeping the speed on interstate at 68 mph. This is a strong engine and pulls all I need. And yes I had a new duramax that lived in the shop. ENOUGH SAID!!!
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It's insane how horribly unreliable new diesel engines are. The emissions requirements have ruined them. Yes, they still perform well...when they're not in the shop. Anyone who tows trailers under 10K (which is most people, let's be honest) does not need a diesel.
I have both engines. On different trucks. The difference comes down to me . Drivability, over capability. The duramax is more capable. But it feels a little heavy. If i had to choose one. I prefer capability. And the front end has grown on me.
Like you to test drive a 6.6L with the Allison trans! Hoping GM will introduce a Big block eventually. Think they need one now.
I just picked up a new 2024 2500HD. It is a Fantastic truck. Really comfortable truck for a trip . I have a 2006 2500HD Truck. It is a total Difference.
I would have to give it a thumbs up so far.
Down side . Only has 6 speed tranny . Why do we need so many gears ? I know 2 ppl . 8 speed tranny . Both of them are having issues
I got a dually . 5 speed . Im glad its not any more gears ! It would be constantly shifting up and down ! Ive had mine up to 100 mph . Still had more ! How fast do we need to go ?
Right. 6 speed was great for years now it’s outdated. 5 speed Tacoma and 6 speed Allison all I need
I felt the same . The 6.6 felt so sluggish. I went with the 2022 Ram 6.4L Hemi. I got 4:10's and tow near max a bunch.
I have a 2020 model and I hate the cylinder deactivation. Does your truck have cylinder deactivation or did ram also do away with them like Chevy did on their HD trucks?
@tonytigere5684 It has MDS . You can turn if off by using the shift buttons . On the steering wheel. Set the max gear to 8th.
I have 6.0 gas 2014 i do tile i load truck with 3 thousand pounds pallets all day plus trailer another 8 k 160 thousand miles dosent consume oil at all and actually took almost 40 thousand miles for engine to break in , so far no parts been replaced and actually brakes lasted me 150 thousand miles on it mpg yea is bad 12 to 16 highway
Coming from a 5.7 gas ram to a 6.6 LML. I’m disappointed I didn’t do it years ago.
I have considered another purchase as well but still sticking with the diesel. I am considering a Silverado 1/2 Ton or Tahoe with the new 3.0 diesel. I worry about my 2014 Duramax being completely stock and the CP4 letting go on me. We take long trips and would welcome the mileage possible with a 3.0 version for those trips. The 5th wheel is staying at one spot at the beach for the time being so welcome better fuel economy. I know diesels cost more for repairs and maintenance, but after owning one, I don't see going back to gas in a truck anyway.
They make kits to mitigate the cp4 pump when it does exploded and it will. Hopefully your using fuel additives to lubricate the pump. How many miles you have on it?
Great video, thank you. I recently bought a Chevy 2500 HD after many years of driving Ford pick ups. I have also owned diesel trucks in the past so far, I’m very happy with the Chevy max towing for me, is probably around 14 K and the truck does very well with that.
I don’t haul/tow every day, so the gas works perfect for me. It’s very early in my ownership experience with the Chevy, but so far I like it.
Any update
@@akaixl83 Still happy with my 6.6 Gas pickup. The truck works great for me. I tow less these days than I have in the past. Usually max towing is 10 to 12K for the load & the trailer. No issues thus far.
I have a 5 l 2018 Chevy 1st thing I did put a cold air system on it Headers, Outlaw dual exhaust system, 4.10 Gears, 7" lift 35 Mickey Over 400 horses And I can lay tracks on those 35,
I was gonna say before you found it they are pairing that 6.6 gas with the Allison so the economy and preformence mite be little different than with the 6 speed. I do agree with its hard to go back to gas and the maintenance and cost between the two its really hard to justify the difference and making the to either direction for the power and economy
It’s a great motor, company truck I drive at work. Got 20k miles and it gets Beat. Pull 25k lbs all over and rough roads at the company. Does Not have the power to tow like a duramax, but good for light loads. Gets 8 mpg maybe when towing. But it’s been dead reliable and gets used hard. Already bent a tie rod and the damn seat already has wear tear in it, very disappointing on the seat material on the 2022-2023s ngl(cloth). Really reliable truck but no comparison whatsoever to a duramax. 6spd is built well I think but it struggle to keep in the power band.
I had a work truck that was a 2020 GMC 2500 with this 6.6 gas. It averaged around the high 13 to low 14 miles per gal.
I own a 2022 gaser HD, your spot on on your critique, I have gotten up 19 mpg on the highway, but I am 13.6 overall.
When you say "I'm not a hot shot trucker" and "looking for something simple", then you show nothing but Denali's and High Country trims... you lost me.
Former GM tech here, I'd 10x rather have the gas 6.6 vs the Duramax in a new truck. No DFM on the gasser (cylinder deactivate) or diesel emissions to worry about! The overall quality of the truck is frankly not great, though. Wiring issues are auper common even on low mileage units.
The problem with gas trucks is not having the ability to maintain highway speeds up steep slopes with a load, my duramax just keeps pulling and I dont have to down shift to maintain speed. I use less fuel in my diesel in the long run
A coworker of mine just got a new 2023 6.6 gasser. It’s the gmc Sierra at4. Beautiful truck. He loves it from his previous Toyota tundra. It has the 10spd trans I believe with I think he told me that it supposedly helped with the slower acceleration.
23 has 6spd, 24 has 10spd
It would be easy to make it pump out more power. If it's burning oil the rings might be ready for boost.
My son has a 2018, 80,000 miles and the oil pump failed. So before buying you might inquire if there's a problem
I have a GMC 2020 2500 work truck. Average 16 mpg I burn no oil. I pulled a 30 ft camper and hardly knew it was there. As far as pick up speed it is not a race car. My 5th GMC I love them. Like you said GMC front looks better. Thanks for the video.
Pulled around 35k with a 2021 6.6 gasser, and was very impressed! Towed it very easily.
Yea ok... lol
@Jacob Sebastien you don't have to believe me! The scales don't lie though!
i own a 2022 3500 hd single rear wheel with the 6.6 gas. i dont miss my duramax one bit. highway i average 18mpg and around 13 in town and 6 to 8 towing.
I've heard about the oil consumption I have a 2021 HD custom with the 6.6 of course and I have not used a drop I've already had three oil changes getting ready to do my 4th check the oil at least once a week it's right on the full
Peak torque is at 4000 rpm. Way higher then a diesel. The Chevy motors are high reving compared to the old school gas motors. They also need more rear end gear selections instead of just 3:73
I put 20k miles on a brand new 6.6 gas. Used it to pull 16000lbs. It towed and pulled and drove better than both my duramax trucks. I will never buy another duramax again.
The new 6.6 motors are very strong, just not sure how long they will last. My 2015 6.0 gas with 130k already needs a new motor
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Dam 6.0 are considered bulletproof to, bummer
@@agentcarder my 2015 gmc 2500hd with 6.0 gas burns at least 1 quart of oil each tank of fuel. it has low oil pressure and low power. not much smoke out the tail pipe. its my daily driver and at 80mph its at 2500rpm on flat ground. it can barely pull a trailer
@@pigslayer106 hopefully 6.6 is better long term
AFM and DFM issues are often due to lack of proper oil changes - and you must use synthetic oil. Sludge will cause malfunctioning of these engines.