How to prevent CP4 injection pump from failing, CP4 and CP3 maintenance. diesel fuel additives
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- Опубликовано: 27 авг 2024
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These are two top diesel fuel additives to use:
Everyday diesel bit.ly/2ItAWl2
Diesel All bit.ly/3eX55oT
Every truck needs this ruclips.net/video/hBbzJmCHtCo/видео.html
Every cummins owner should know this ruclips.net/video/WBOBzA56jvw/видео.html
Every vehicle needs this, does not matter if it's truck, car or EV ruclips.net/video/H_bSDqnSh90/видео.html
Which one is the best one, both are good and work as formulated. However, cetane and lubricity numbers different between two products, final research results will be covered in another video.
This is what I use. I run Hot Shots Secret EDT almost every tank in my Nissan Titan XD Cummins.
Interesting video. My BMW 520d with N47 engine has cp4 pump and has broken down, injectors are ruined, I took the metering valve off the pump and found metal swarf inside, so I have a lot of work ahead of me now to save my car from the scrap heap. Thank you for the video. I will now subsribe. 👍
You are welcome
I still have a 2003 F350 7.3 has 565k miles still runs great only changed 1 injector and couple banks parts on the engine and always use amsoil 5/40 since day 1
Great video. I still have 4 early 80s Oldsmobile Diesel cars that are still original except for a few injection pump rebuilds, now of course they are all very low mile car that were owned by old people since new.
I preferred to make the conversion to CP3 to avoid the damage of all injection components. In case of a damaged CP3 you will replace only the pump itself, not the whole injection components, like a junk of CP4. This is the main advantage of CP3.
2014 gmc 2500hd duramax purchased with 53k, cp4 failed at 56k less than 3,000 miles after purchase. Aftermarket warranty refused claim, was blamed on wix's new plastic filter install by local GM dealership. Left me with a $3,705.00 Southwest warranty that wouldn't cover a cent. GM quoted 16k for fuel system replacement. Performing the work at my employers facility for 4k in parts and 20 hrs labor. Corpus Christy, Texas cp4 lawsuit settlement is very interesting.
Wix makes great oil filters specially their xp version. But when it comes to fuel filters, oem is better. Aftermarket warranties pure scam.
I have a 2019 RAM with Cummins, equipped with the CP4. I have 9,500 miles on the odometer. The truck has been recalled for the CP4 pump, with no fix in sight. Because of your excellent video, and others I have watched, I am now using Diesel Kleen to lubricate the CP4 pump. In my opinion, RAM should be advising their Cummins customers to immediately start using Diesel Kleen, because it is now recommended by Cummins. And, RAM should be sending Diesel Kleen coupons to their customers. Diesel Kleen should be free, until the CP4 is replaced.
have you watched this video about lubricity ruclips.net/video/fw_Xeg350rQ/видео.html
I would avoid using kleen, it's unknown how much lubricity it adds if any.
I use lx4 and edt by hotshots
I just found your video and I'm totally on board with your logic. My question is, I've been using Hot shots diesel extreme, every 6000 miles, because I believe that's what it says. Would you recommend using the daily additive instead? And should it be used every tank full?
What do you mean by “daily additive” instead ?
Sorry... The everyday diesel by hot shots.
If you want better lubricity use everyday diesel every fuel tank
Perfect...I will definitely make the switch. Thanks for the reply and thank you for doing this video!
You are welcome
Good explication of the lubricity of diesel and consequences
Thank you!
Thank you! Fair essay on topic! Very helpful! I’m using Opti-Lube XL & Opti-Lube Summer+Cetane. Got my 2014 2.0L TDI with 45k miles, started using shortly thereafter. Got 70k on it now. Hoping to avoid the issue of “sandpaper” fuel. I also change my fuel filter twice as often-so every 10k instead of 20k (manufacturer’s spec)
You are welcome! What do you have and year?
Considering going with Nicktane’s 1 micron additional fuel filter. It mounts next to the filter housing. Google them. Kits $100-the filter’s about $50
@@repairvehicle I edited my answer while you were responding to me 🙂-hope you caught that
1 microns ratings? What is the brand of the filter?
Can’t wait for the video testing diesel fuel additive lubricity! (I hope it’s Opti-Lube!) (With Stanadyne and Hot Shot’s Secret a close second or third.) ( I hear Diesel Kleen’s the worst. Which is sad, because a lot of people use them!) Cheers!
Something is better then nothing when it comes to fuel treatment and I agree with you a fuel filter is 30 dollars why not change it every oil change, and also i would like to add install a lift pump asap so that your fuel injection pump has more fuel then it can pull
Thank you my you very correct on lubrisity I can tell you the best additive HOT SHO TS very good video 🏋️♀️👍🤺
How do you know its the best?
I own a 2019 RAM with Cummins. I live near Toronto Canada. Our winter temps do go below -18'C. Make sure you use 5W-40 synthetic oil. It says so right in the manual. In April 2021, my local RAM Dealer used Shell Rotella 10W-30. I drove my truck twice this winter in -20'C weather. The owners manual says NOT to use 10W30. Be very careful what your Mechanics are putting in your engine.
ruclips.net/video/kJZJ1OnehWI/видео.html you should watch this video about Rotella
As someone who owns a truck with a CP4 I appreciate these videos! Thank you
As for fuel filters, I only put about 5-6,000 miles a year on my truck, well below the required amount to change the fuel filter. I still change mine every November and April though. Figure it doesn't hurt especially in my area where over winter we get the winter blend fuel instead of straight up diesel.
Thank you for sharing and commenting.
By the way, what year is your truck and mileage? Have you had any issues with cp4?
@@repairvehicle I have a 2012 Duramax, currently with 42,8xx miles on it. Bought it 3-ish years ago with 27,xxx miles on it. No issues whatsoever with the CP4 so far, considering the costs of repair-hopefully won't have to deal with any issues anytime soon.
@@tmillgohawkeyes are you using any fuel additives?
@@repairvehicle I use Power Service-white bottle in the winter. I've used Power Service-Silver bottle in the past during the summer, but never consistently. My truck runs way better once we get out of winter blend season, so I never really think about it.
Very informative and well done video, kudos! I have opted to use Diesel Kleen + Cetane since it's endorsed by Cummins. I noticed a vast improvement in the overall behavior of my 2019 Ram 25oo almost right away, smother quieter idle, better acceleration and fuel economy, the truck just seems to run happier, I've made it to 42K without any issues, I do run full synthetic Rotella T6 and change it every 10-12K and I keep up with regular fuel filter replacement, so far, so good.
Do you have cp4 injection pump?
@@repairvehicle Yes, the 2019 Cummins engine uses the CP4, I have thought about having it swapped out for the upgraded CP4.2 (which I believe is the dealer fix after CP4 failure), but if I do an elective repair like that, it would be out of pocket, I do have a 100.000 mile power-train warranty that will cover everything should the CP4 I have now fail before 100K, but the idea of being let down somewhere bothers me, and I would like to avoid having that happen. What are your thoughts?
I have made video on this subject, take a look when you have time. ruclips.net/video/SXNOTZA-xFQ/видео.html
I run Hot Shots Secret EDT in my Nissan Titan XD Cummins and Shell Rotella T4. I have 161K with zero issues. I also change my fuel filters every 9-10K.
I use additives with lubricity and change fuel filters every 10k change oil every 5k
the reason my fail was the use of eco diesel. worked well for while soon as I got eco diesel the pump fail that is because the lubrification!
I would add one more reason causing CP4 to fail: some air in diesel fuel if there is not enough fuel in a fuel tank ! And I think Bosch CP4 pump is more sensitive for these factors than CP3 pump.
Yes it is more sensitive, because it has squeeze fuel even more to achieve higher pressure
Definitely make sure that you purge all air from your fuel system after you change your filters and don’t go past quarter tank before you fill up.
@@ppentertainment2351It's possible to fill up this modern diesel fuel system only by some diagnostic tool to completely purge out all air from the fuel line.
Pulled a cp4 out of 2013 Ford 6.7l with 300k miles. It was leaking at the seal between the left pump head and body. So I got it apart expecting to see scoring and debris and the rollers and cam looked new. The two little pistons looked new and this truck had atf added to the fuel not even on a regular basis.
You have real proof it's not bad design it just needs lubrication
I wonder if ATF is the cause of leaking seal on the pump. Diesel fuel mixed with ATF is not best chemical composition for keeping seal protected from deteriorating.
@@repairvehicle yeah, just needs a different source of added lubricity that won't shrink and harden the rubber and it she might go another 300k
These are good lubricity additives. www.amsoil.com/c/diesel-additives/18/?zo=5257753 Work in progress testing this lubrication properties of this additive and other brands. Test results will be available next year or maybe even this year.
These are good lubricity additives www.amsoil.com/c/diesel-additives/18/?zo=5257753
I use 250 ml Liqui Molly 2 stroke oil in tank before filling it up. It has 350.000 km now and never changed the chain or pump. Its a 2009 modell 318d N47.
What do you have and year?
@@repairvehicle E91 318d N47 CP4
Do you have emissions equipment on your BMW?
@@repairvehicle Like DPF? Nope.
It worked for you because you had no dpf, otherwise you would have had major issues with dpf and so on
@repairvehicle good video and thanks for sharing information. Unfortunately i think the cp4 IS a bad design for US market. it is A good design for Europe but not for the US fuel quality. When they implement some design into a truck they should consider the real market conditions and if the pump is not designed for the US diesel then create something that people can rely on and not force them to use all kinds of additives and all other stuff
Additives must be used not just because of cp4. Additives lubricate injectors, clean injectors. Also, Additives help with dpf filter, less regens.
@@repairvehicle totally agree. But when we speak about pump designs, cp4 is a bad design for the North American market, prone to excessive failure under real world conditions
Love the video man! CP4 just went out so I will be taking good cate of the new one. Hopefully they will upgrade to the 4.2.
What do you have and mileage?
@@repairvehicle it lasted 120,000 miles.
On chevy or Ford?
@@repairvehicle Jeep EcoDiesel. VM Motori 3.0L.
I didn't know jeep were using cp4.
I have a 2020 ram High output Cummins motor. I have the CP 4. I use hot shot secrets everyday diesel treatment.. Also lx 4 lubricity extreme.
What is the mileage on the truck?
Is your truck deleted?
My mileage is under 5000.
No it is not deleted
Have you seen an increase in regen frequency, meaning truck is in regen more often or less often with lx4 lubricity?
I use marvel mystery oil in my 6.7 powerstroke and change my fuel filters every other oil change about every 12,000 miles
Mystery oil does not work, it works opposite. There is no information of any kind before Mystery and after Mystery, it's because it doesn't work. I followed another RUclipsr who was big into oil additives until he did oil analysis and he stopped using it.
Use hotshot, it has lubricity in the additive. The fuel filters dont work best when brand new, brand new they can let more junk go thru. I wouldnt overkill on the filter but i would definitely add a good additive like hotshot. Dont let your tank go under a half a tank. I try and only use high end fuel stations and not your local crappy gas station, who knows how long and it water is in the underground tanks.
Hotshot and amsoil works well
Very good video👍
The Nissan V6 and 4 cylinder engines in the Frontier will get 1 million miles easy too.
Not possible, unless you keep replacing engines
hi there sr this video was very helpful to me having 2 truck now being repair with fuel system failure i bealive now i can avoide this from happening again thank you for you helpful video!!!!!!!!!!
What do you have? Mileage and year?
2019 Ford F350 83000 miles on I use the Truck for Hot Shot work, I've a ? how often should i add Additive to my fuel tanks 1truck have 2 tanks and a external fuel tank 60gals, the other Truck have factory fuel tank and a external fuel tank total fuel is 100 gals
All in one Diesel fuel additive should be used every fuel tank to take advantage, of lubricity, cetane, and cleaner. If fuel additive is used every other tank then it's only effective every other tank and on the long run you are not going to see full benefit from them. What brand of fuel filters do you use and where do you buy them?
@@repairvehicle I use Ford fuel filters only every oil change that is at 7500 miles the factory recomend 10000 miles but I don't do it again thank You, will stay in touch........
Very smart to use Ford fuel filters. I hope you are not using motorcraft oil.
Good sir, I’ve a S&S Bypassed 2011 F250 6.7 with 214,000 miles. Again, It is bypassed, I run Motorcraft cetane religiously and give it everything it needs when it needs it, including filters. I’m a PM believer. My question is, can I have my CP4 overhauled anticipating that it is getting to the end of its lifespan? I’d rather do that than have it fail in the backcountry. If it can’t be overhauled, should I replace it? I spend a great-deal of time in unpopulated backcountry. Great content! Please advise…
Do you use any diesel fuel additives to increase lubricity of fuel?
Does motorcraft adds lubricity?
if motorcraft does not add lubricity. Then yes its good idea to have it rebuild or replace it with new.
@@repairvehicle Motorcraft Cetane religiously every fill up.
@@repairvehicle … the bottle and spec info says that it adds lubricity. I’ll post a link below but it might not be allowed. Absent that,.. A search for Motorcraft Ford Cetane Booster Specifications will give you some defined information that is Greek to me.
I have a Ford 6.7 (2019) with 20k miles used for rv towing. I’ve been using Stanadyne Lubricity Formula. I’ve seen independent reviews that rate it highly. It also provides (supposedly) a water deemulsification component to help the water separator. What is your opinion?
The company says it improves lubricity, however no data how much it improves vs untreated diesel fuel. I personally would not use it. Diesel injection system is to expensive to be cheap. Water separation is done by the filter, if filter fails this fluid is not going to help prevent fuel system from failing due to water.
Stanadyne has been around for years and they have built pumps for years they have a great reputation
You need diesel fuel additives that adds good amount of lubricity without clogging up DPF.
I also use Better Diesel to cut down on soot. Also monitor DPF% with Banks IDash. DPF goes into regen ok.
Cetane is what cuts down on number of regens. Diesel fuel additives is the solution for cutting down regens and improving lubricity
Gold! “Power is not free!”
They keep on feeding us the idea that we need 1k horse power on a work truck..oh and it’s off road approved! 😅👍🤦🏻♂️
A luxury racing work truck that can go off road..wtfffff
What do you have
@@repairvehicle CP4 on a 19' 6.7
Great video and very good info.
I have a 2016 Chevy 2500hd Duramax. With 109k miles. Currently my truck is at the dealer being fix. Unfortunately the CP4 Fuel Pump failed and sent metal shavings into my entire high pressure fuel system. Dealer is replacing all fuel system components.
My concern is that they are putting this well known problematic CP4 again and that I will go through this very highly cost repair again. I'm the second owner and not sure if the original owner was using any fuel Additives, I wasn't, but after seeing this video, I will definitely start using them in every fill up. I'm considering converting it to a CP3 Pump since the reputation of the CP3 is very good. Would you recommend this? Or would you just recommend keeping the CP4 and add a lift Pump plus fuel Additives? Will the CP3 perform good on my 2016 Duramax? What are the pros and cons of going to a CP3? Thank you
In this video I have answers to your questions ruclips.net/video/SXNOTZA-xFQ/видео.html
How often were you changing your fuel filters?
I had the truck for 22 months before this happened. Since I bought it, I put in 9k miles. Previous owner had just replaced the fuel filter. So, I was waiting for the computer to tell me when to change it. I believe I still had like 45% left. Not sure how often the previous owner would change it. I'm assuming every time the computer would tell him
It's a number one mistake owners make following computer. I know guy who changes fuel filter every time he changes oil, it's expensive way. But it's worth every penny. His truck has cp4 original and 200k miles on the truck with everything original.
How much is the repair $$?
so something as good as the SPE disaster prevention kit + EXO filter with fuel additive + fuel lubrication and good fuel should help keep it safe? i do plan on going CP4.2 10mm with the internal filters as well, im sure thats enough to make sure i dont screw myself once i start voiding my warranty with a bigger turbo and tune.
Fuel additive with good lubricity definitely is going to help. Other stuff, I have not found any evidence.
@@repairvehicle thats understandable, i guess in theory adding 2 extra filters and re routing the fuel sounds good and i would hope could only help vs hurt if at the end of the day its destined to fail not to mention getting good fuel, addtives.... ultimately just taking care of your truck.
Spe disaster kit is a scam and it doesn't work.
@@repairvehicle do you have a video explaining on what makes you say that?
This week video will be available. Finishing up the details.
I got a 2020 ram 5500. So if i use fuel additives the pump wont go out? Is it worth putting in a cp3 conversion? Kinda worried, gotta get it fixed b4 something happens. I do hotshot and rack on the miles quick. Any suggestions??? And what is the best fuel additive for a Cummins?? I use EDT hotshot secrets.
Fuel additives with lubricity definitely will extend the life of the pump. Will it prevent pump from failing, good chance it will. I personally have not heard from anyone who was using Fuel additive every fuel tank with lubricity and their pump failed. There are different Fuel additives, not every Fuel additive has lubricity. Regular cp3 pump cannot supply enough pressure that cp4 provides from factory. Cp3 pump must be heavily modified beyond it's designed basis. Once it's modified it can provide high pressure, however it's no longer regular well known reliable cp3 pump, its hybrid cp3 pump with unknown reliability. Do cp3 pumps fail, of course they do when contamination enters fuel and not enough lubricity. Question for you about converting to cp3 hybrid. When the cp3 hybrid pump fails on the road and you have to be towed to have it fixed, what repair shop is going to have cp3 hybrid in stock or will be able to find one quickly? Not many, certainly not ram dealers and they will tell you that you have to use cp4 as replacement. Also, computer system might not even work properly with hybrid cp3.
If it was my truck, I would use quality fuel additive with lubricity every fuel tank, no skipping. Always use quality fuel filters from reputable reseller or directly from distributor. Change fuel filter per factory intervals. What is the best fuel additive for diesel, stay subscribed I will make a video with data as a proof. If I have not answered your questions please let me know.
@@repairvehicle Thanks for your help. Will subscribe
Keep using EDT. I use that in my Titan XD Cummins and have had zero issues. It cleans your fuel system and I think it has water emulsion properties too.
2017 titan xd, deleted and tuned at 25k. Have 47k now, truck has been amazing but now you have me worried about this pump. I use Howes every other tank all year round, I'll keep my fingers crossed. Also, besides legal issues, is off road diesel safe to use?
Off road diesel fuel has no advantages over regular diesel, its different color because it's not taxed.
Just make sure to use diesel fuel additives with good amount of lubricity
@@repairvehicle thats a major advantage where I am. $1.80/gallon vs. $2.55/gallon for regular #2
@@ultraglide486 , in my area off road diesel is not available, I didn't know how much price difference.
When I said about no advantages, I meant in diesel fuel quality.
is there any lubricants on the market wich we can put rite in fuel tank for longer fuel sistem life?
What do you have and year?
Yes there are, what do you have and year?
@@repairvehicle now don't have any, just trying to undestand how to treat with a modern diesel))
An old tried and true trick to add lubricity to fuel that works from what I understand can be used on an 06 or older diesel truck in the US of adding a bit of tcw3 rated conventional two-stroke motor oil to the fuel can work wonders. I have been using a 1/2 an ounce per gallon of diesel fuel in conjunction with a recommended amount of power service per gallon in my '06 5.9 Cummins since the day I purchased it in 2012. The injectors seem to appreciate it from what I can tell. As they are quieter the audible tick that they once had when I first purchased it is no longer there.The truck has also passed emissions with flying colors. I bought this truck a Dodge 3500 when it had 50,000 miles on it. It now has 110,000 and going strong no problems. Not saying you should do it but it works for me giving me the Peace of mind that my common rail high pressure fuel system is receiving some lubricant.
True and tried diesel fuel additives with lubricity.
Very informative video, thank you.
You are welcome. What year is your diesel and make?
@@repairvehicle i have both a 2019 and 2020 ram 3500 with 6.7 cummins. I'm running Stanadyne Lubricity formula at every fill up.
You must have a business. Very combination cummins with aisin Transmission.
@@repairvehicle that is correct. I'm hoping i don't run into any issues. I stay on top of scheduled maintenance, changing filters and all that. Just looking to extended the life of these fuel pumps.
Thanks for the info. What do you think of the 19' 6.7 6-speed vs 20' 10- speed transmission? Should i upgrade to 20+ 6.7??
I drive 6 speed automatic diesel truck myself and would never trade in for 10 speed.
Fords 6 speed transmission is one solid, reliable, easy to service transmission.
6 speed has dipstick and I can check fluid level and color anytime I want.
10 speed transmission is not reliable.
10 speed is very complex, not easily to service.
10 speed doesn't have dipstick and changing fluid is a challenge.
For me reliability, ability to check fluid and easily to service is very important, 6 speed is just awesome.
If I had money to replace truck every 3 years, I wouldn't care about reliability, quality, service and so on, I would buy 10 speed.
@@repairvehicle Wow, yeah canceling that Ford 2022 order! I kind of had an idea on it but you just confimed it! Thank you so much! God bless!!
You are welcome. God bless you too.
Help .
I have diesel came on to engine oil .
Duramax 6.6 LLY . Kodiak c5500.2006
injection .return line out of engine.
Engine no smoke,works great.
But oil level is to high I took out from engine around 20 litres of mix, oil and diesel.
What it’s can be ,cp 3 high pressure pump .
Or can be other issues?
It could seal failed on cp3. Injectors stock open, but engine would smoke lot.
It’s possible to change seal ?
Or I need new cp3
Thank you so much for answer !
It is possible to change seals, however you have to take pump a part and you use special tools. You better of buying remanufactured or brand new
So how can we prevent water going inside the air intake in a rainy day or flooded areas (New Subscriber)
What do you have?
@@repairvehicle I have my stock intake but I'm changing to a aftermarket No limit stage 2 cold air intake
Factory air intake is the best to prevent water getting inside. Some aftermarket that are similar to Factory should do a good too. Plain air filter with piece of pipe is not going to stop water entering inside. My cousin had aftermarket air filter and drove through heavy rain on his way home, next morning when tried to start the engine it was seized. If you are in heavy rain or high water drive slowly, to prevent water entering engine.
@@repairvehicle thank you I'll keep that in mind good content ill be seeing your videos
Has anyone tried mixing 2 stroke oil in diesel to lubricate the pump better? Is there anything that will work to extend the life of the diesel pump?
@@apriliars250norway nothing work better than diesel fuel additive
If you can’t afford quality diesel fuel additive, you owning wrong vehicle
NICE VIDEO!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!
Thanks for watching!
What is your opinion of the S&S CP4 Bypass kit?
I will make a video on this subject this week with explanation. Please subscribe.
@@repairvehicle Subscribed. Thank you.
I have 2012 with 150,000 and FASS fuel pump. Would you recommend installing fuel system saver that has a better screen. 2011-2016 Duramax Fuel System Saver (E05 10505
According to the company that makes this saver, it's not going work 100%. Up to 25 microns vs 80 microns factory. Also from their website "The new design will capture more debris, causing the truck to shut down sooner, creating less damage and downtime in the process."
This part is not going to prevent damage from happening, read what it's says "creating less damage" what does it means? You would not have to replace injectors? My preference is to use additives to increase lubrication.
Thanks for making me save 250 bucks.
No problem. Please share this video with others via Facebook or any other ways. Thank you.
The CP4 is a poorly designed pump bar none! Bosch made one horrible mistake and that was not keying that piston with the roller in it's bore. You have to look at that piston as if it were a roller lifter which it basically is and all roller lifters are keyed or held in place by keepers to prevent them from rotating in the bore causing the roller to no longer roll over the cam. Bosch was planning on spring pressure holding it still but air can cause it to float around causing rotation as well as problems due to water and poor lubrication. I feel strongly that if Bosch had keyed that piston somehow, they would have possibly cut CP4 failures in half. The rest of the design is probably great and it is extremely modular and easy to adapt to many applications but I can't give it a pass due to that one major engineering failure. I definitely sleep better now that I converted my '19 Ram to run a CP3.
I have comments from cp4 owners that have 500k plus miles on their trucks and no cp4 problems. Secret to longevity is quality diesel fuel additives that adds lubricity.
@@repairvehicle I understand the lubricity issues, I ran Hot Shots EDT religiously every single tank and had success with both the CP4 in my Ram ecodiesel and the CP4 in my '19 Cummins. The point is, you shouldn't have to run these expensive additives to try to keep a pump alive. Which brings up another engineering failure of the CP4. It is using the same fuel that is lubricating it's bottom end to be sent up to the high pressure pumping components, so if the bottom end fails, metal shavings will be distributed to the fuel rail. CP3 sends bottom end fuel back to tank and high pressure pumping components recieve fuel that wasn't drawn from the bottom end therefore reducing the chances of shavings making its way to the rail.
@@repairvehicle CP4 is also capable of delivering up to 39,000psi which is great for emissions but what's the point when my Ram can only access up to 29,000psi which the modern CP3 is capable of delivering?
Your modified cp3 delivers 39k psi. It's spinning at 1.5 times faster than none modified cp3.
@@repairvehicle CP3s pump more volume at lower pressure due to them having 3 high pressure pumping elements vs CP4.2's 2 elements. Cummins had to overdrive the CP4 in order for it to deliver the volume needed and not necessarily the pressure. Now that they recalled them, they will keep the CP3s overdriven to keep the retrofit simple but it's no longer necessary. The 2021s and newer with factory installed CP3 (CP-ISB21) no longer have overdriven pump gears. 19s and 20s will possibly make good candidates for performance upgrades due to that 1.5 times faster spinning pump. You could install a stroker pump and have enough fuel for big injectors!
So what’s the best fuel additive for my ‘16 Duramax?
After researching for months and continue my research, I have came to conclusion that these are the best. www.amsoil.com/c/diesel-additives/18/?zo=5257753
Nothing comes up on the link ☝️
Here's the link www.amsoil.com/c/diesel-additives/18/?zo=5257753
@@repairvehicle why not hotshot secrets anymore? They are way better for diesel additives
Hotshot secret is awesome diesel additive, if lubricity is not your main aim. If you are looking for additive that provides maximum best lubrication for hp and injectors, Amsoil is your only option. Amsoil is the only company that has numbers for lubricity.
Does switching Fuel Additives affect anything in the fuel system?
No it doesn't. But to get full benefits of new additive, run fuel tank to lowest safe level and add new brand of additive.
Where's the video for the diff additives?
On my channel.
So many people wanna buy brand new trucks what was wrong with a couple year old truck or older
Nothing wrong with older trucks, no payments and no worries about making payments .
dumbest question someone could ask, we live in the land of the free because of the brave, statistics show failures on the CP4 are less than 5% and with 2 of the broken pumps one being submerged in water it isnt hard to believe that most are from negligence or not taking care of their truck. no one is getting the MPGs or the towing that yo can out of a 2020 SD and if you know how to do some preventative maintenance your shit can last a lot longer and youre gonna be a hell of alot more comfortable
I can’t understand wtf your saying
Watch video 10 times without skipping and you will understand just like others. Watching for few seconds is not going to help