Это видео недоступно.
Сожалеем об этом.
Slower NOT Always Better - Speed vs MPG Test 3.0 Duramax Diesel
HTML-код
- Опубликовано: 9 июл 2024
- I ran the 2024 SIlverado ZR2 with the 3.0 Duramax Diesel Engine on Bonneville Salt Flats to see where the best MPG was as far as speed goes. This test was unscientific but it did provide a nice flat wide open area with no obstacles to vary the speed.
The ZR2 comes with larger tires than other models and therefore are much heavier as well. The 3.0 Duramax Diesel in any other trim likely would net 50+mpg in this same test.
ACDelco Fuel Filter: amzn.to/3QFfXex
3.0 Duramax Oil Change W/ PPE Oil Filter: amzn.to/3qmLR6o
3.0 Duramax Oil Change W/ ACDELCO: amzn.to/3QtmDO5
PPE OIL FILTER: amzn.to/3JP9j22
Fuel Filter Socket: amzn.to/4b52BkY
Fuel Filter KlickWrench Socket: amzn.to/42arKH6
Aluminum Fuel Filter Cap: amzn.to/3FZir28
K&N Air Filter: amzn.to/3S5sLvq
K&N Intake: amzn.to/4b6oy35
K&N Fuel Filter: amzn.to/4b6Ux3i
www.bankspower.com/demonworks
Banks idash - collabs.shop/b...
Banks iDash Data Monster - 66760
Banks iDash Super Gauge - 66562 (piggyback kit to datamonster)
Banks Pedal Monster Kit - 64311 (piggyback kit to datamonster)
Banks Stealth Pod Single - 63369
Banks Stealth Pod Dual - 63370
Product Link - boostautoparts...
WEIGH SAFE HITCH: www.weigh-safe...
ALSO USE Discount Code DW10 at weigh-safe.com
www.bankspower.com/DemonWorks
www.duramaxnews.com
www.bankspower.com/demonworks
As an Affiliate / Influencer, I earn from qualifying purchases. Your support is appreciated as it helps the channel to continue to test products!
GM built what is probably the world's most advanced diesel, and ppl can only complain about the oil pump belt. The capability of this thing is amazing.
It's because people are jealous their truck isn't as good or because they can't afford one. It has a 150-200k lifespan. There's plenty of vehicles with timing belts that need replacement at the same mileage or less, and costs pretty much the same for the service. Also, I'd rather have a pump belt break on me and lose oil pressure where you can quickly shut the truck down before doing damage. The same can't be said of a failed timing belt.
facts!
I averaged 23MPG on a 3k mile round trip out west. And that was travelling all speeds, terrain and weather. Oh, and the AC was on the whole time. Still impressive for a truck like this.
23 LTZ 4wd (stock) here. I did a short mpg test with hills/highways in NorCal. 30-40 miles each way.
50mph 41mpg
55mph 38mpg
60mph 35mpg
65mph 33mpg
70 mph 29-31mpg
“Allegedly” 80-90mph 25-26mpg
Definitely agreed with sport mode on in town I get better mileage. On the highway (70-80) I’m seeing better mileage in normal mode.
I have 15k miles love this truck.
I get 32.8 mpg average going 60-65 mph on my 2020 Chevy Silverado LT 4wd 6'6" box. I just changed the transmission fluid and filter at 80,000 miles after watching your videos. The previous owner hadn't changed it. Thank you for the content you make on these trucks.
Very nice! thanks for the kind words !
Thanks for the "real" MPG numbers. I enjoy your videos! My buddy's 23 LZ0 shows 27ish compared to my 22 EcoBoost 3.5 showing 22'ish when I drive them for similar driving loops. There seems to be a lot of Chevy guys that exaggerate their numbers or maybe aren't good at math 😉
If you calculate at the pump your ecoboost will be 20% or more off on its mileage MPG calculations. They’ve been like that since 2015. I’ve owned 2009, 2015, 17 and 21. My 2009 was the only one that was accurate like my new LZO.
Diesels seem to have a sweet spot where they are most efficient under some sort of load. Otherwise they kinda just lug around. Sport mode in the city helps a lot too.
I have a '23 LZO and I see an overall average of 23.7 mpg tracking fuel economy with the Fuelly app. 70/30 city/hwy is mostly what i am driving 60ish MPH to and from work. Only big thing I noticed was a trip to Florida towing a 7x14 double axel trailer with two Harley Baggers, didn't get anything better than 12 mpg and man did it love DEF.
Yep. The programming gets DEF thirsty as soon as tow mode and a load is on it. It's horribly calibrated too. Went from 2 bars down to a reduced speed warning in 97 miles.
I agree with towing drinking def but also a recent road trip with no towing, I got the warning to come on just going up hills.... terrible calculation system.
Left San Antonio Tx and drove to Orlando and was at 26.5 mpg when I got there. 22 lt z71. And that was 75-80 the whole way. Love the truck
Congrats on the new ride ! those are great numbers !
Mileage is load dependent. Each engine has an optimal BSFC (brake specific fuel consumption), This is load and rpm dependent, the closer you are to that sweet spot, the better milage you will get for the fuel. Most diesels (cylinder geometry and flame speed dependent) run best 1400-1700rpm under moderate load, typically just enough not to spool the turbo.
Thanks for sharing
@DemonWorks yeah, I've taught on the subject before. Google "bsfc chart" its basically the Bible for the engine if you can find it.
My 2024 LTZ max tow LZ0 with 3.73's is running 2000 RPM at 80. On a drive through Iowa it was averaging 25 MPG on a 50 mile average at 80.
At 30 mpg you are still using a lower gear. Manually shift it to a better cruising gear at each MPH and the MPG will go up on each one.
I felt this was the best apples to apples comparison for same exact conditions at each speed.
I think what trim of truck you have and options make a huge difference also. Almost as much as speed. My truck is set up for towing. it’s the lowest height wise 4 x 4 GM makes. It has 18” wheels. Does not have AT tires. Maxtow. But is the longest 1/2 ton they make. Also have a bed cover. Speed does not affect my truck near as severe as it seems to affect yours in the video.
100%
for the best milage you should be cruising at the speed possible in the highest gear in the peak torque range, that would give you the best mileage. In my car it's around 70 mph at 1800 rpm when it gives the best milage. This is considering that the road is uneven, and the vehicle needs the torque to fight the uphill battles without dropping a gear. on a level ground it should be the lowest speed in the highest gear, for me that is 55 mph at 1200 rpm.
It would be cool to see this test with other trucks.
I agree !
I get low 40's in FL at 65mph in my 2wd LZ0. 1000lbs in the bed.
Yup same here at 65 in flat Illinois. Great truck.
My 2022 lm2 transmission temperature ran at 180°. My 2024 lzo runs at 196° like yours. What is the difference between the two?
they changed the way it's routed on the 22.5+ . I now have a PPE Bypass valve in place. 104 degree ambient temps, I saw 156 degrees on the trans. I'm happy now.
at 85 mph it is the same as my '17 Tacoma was getting at 62 mph. Can't complain about that, if I ever get it back from the shop with a new CCV.
GM better start using a different grease in the CCV, it's getting ridiculous. At least make it less work to remove the CCV so owners can put quality grease in the actuators
Is that the valve system in the transmission? Because my AT4 is in the shop too for that. It’s been about a month waiting on the parts.
If only GM would make 3.42 the standard axle ratio and allow 3.73's in non-max tow configurations.
I agree ☝️
Yep, I think 3.42 rear was the best compromise. At least it was paired with the 6L80. I'm not enough of a gear-head to know if that's the case with the 10L80 though. 🤔
What’s the air temp? I think air inlet temp plays a part. I’m not sure but I think I get better MPG when it’s 65° vice 80° outside.
Air temp was hot! 🥵 I wasn’t trying to get max mpg though, I was trying to see how the speed really changed the mpg. It was a near perfect scenario with no wind, no traffic and no inclines or declines. I can for sure get better mpg numbers on short spurts and different speeds but i felt this nailed it on how speed can vary numbers so much.
True that. Love your content. Keep doin what you do bro.
Trying to decide between this or a PowerBoost hybrid. Day to day I do mostly city, (15.8 miles round trip) but I take 300 mile round trips every other weekend. Not sure if diesel would be worth it because I wouldn’t be towing regularly
In daily driving they’ll be about the same maybe the diesel edges out the ford. But on the highway it’s no competition the diesel easily will get 5 mpg better. Really it comes down to cost of diesel in your area and your brand/design preference.
Hopefully I have enough videos posted up to help you make that decision. i try to show the pros and cons of these trucks with my GM dealer tech experience as well as the 5 I have owned.
how about doing one with PPE zilla, PPE intercooler intake, and a cold air?
I pulled all of that off and no immediate plans to put it back on as I try to give some time/videos to people looking at a stock truck. I do have a lot of videos with those parts installed, just nothing like this exact video, unfortunately.
I get 42-47mpg going 58MPH.
Differing conditions and different vehicles, I can also get better mpg if I tried and ran it at different locations, but I felt this was the best apples to apples comparison for same exact conditions at each speed.
what all mods are on the truck when you did this test?
all stock except for the ppe diff cover.
Gotta be the 3:73 gears in the tow max..probably pick up 2mpg with the 3:24 but lose 4k in towing capacity
This truck is a ZR2 with the 3.23 gears. The max tow package was on the 2023 High Country
Yes but it takes longer to get to where yr going no savings
yup, time is money. 10 mph isn't that big a difference but from 35 to 66 mph is a huge difference.
more so on longer trips too.
What rear gear ratio do you have?
This ZR2 has 3.23
That’s a good ratio for mileage I think. I have a refreshed 22 w/LM2, same ratio, and i usually get around 26-30 in my daily driving. Best road truck I’ve ever owned