What diesel additive is best to protect the CP4 pump

[Koolcarguy]

What additive most people using to protect the CP4 pump and lubricate it better?
I lost one pump in my 22 JTRD and want to protect my 21 JLURD and 23 JTRD

Currently using Hotshot Everyday treatment...

I run a product called Ldl made here in Wy havevsunce 05 in my cummins 380k miles no failure of anything still same injectors and pump I started using it from day one in our 2 Jtrd and Jlrd and my 21 Jtsd total of 142,000 miles no failure of anything so far would also like to mention i change fuel filters every other oil change and air filter same time

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[djthumper]

Another for Hot Shots EDT. I drive 70 miles round trip for work every day and at 31, 500 on the clock with no issues while waiting to complete the recall.

 

[Teqsand]

I run a product called Ldl made here in Wy havevsunce 05 in my cummins 380k miles no failure of anything still same injectors and pump I started using it from day one in our 2 Jtrd and Jlrd and my 21 Jtsd total of 142,000 miles no failure of anything so far would also like to mention i change fuel filters every other oil change and air filter same time

Unless the Cummins has a CP4 pump then the reference is moot.... CP3 are good solid pumps that most non ecodiesels use... we should have gotten them instead of the 4

Is it LDL or LDI?

 

[Koolcarguy]

Unless the Cummins has a CP4 pump then the reference is moot.... CP3 are good solid pumps that most non ecodiesels use... we should have gotten them instead of the 4

Is it LDL or LDI?

I agree the cp4 is a nightmare just used the cummins as a reference I use it in all my ranch truck and all my dealership trucks also and it's LDL

 

[Rusty PW]

Cummins used the CP4 in 2019 and 2020. Those 2 years were a headache for them. So they went back to the CP3 in 2021.

 

[StoneyBanks]

Thought this might be interesting to some of you. I ran the question through ChatGTP AI and this was the response:

Q: What is the best diesel additive considering the recall of the Bosch cp4 fuel pump?


AI: As an AI language model, I cannot provide a specific product recommendation for the best diesel additive, as the choice of diesel additive may depend on several factors, such as the type of vehicle and the specific diesel fuel being used.
However, with regard to the recall of the Bosch CP4 fuel pump, it is important to note that the use of a diesel fuel additive may not necessarily prevent or resolve issues related to this recall. The recall is due to potential failure of the fuel pump caused by metal particles in the fuel system, and adding an additive may not address this issue.
If you are experiencing issues related to the recall of the Bosch CP4 fuel pump, it is recommended that you contact a qualified mechanic or your vehicle manufacturer for guidance on how to proceed.

 

[Hootbro]

Thought this might be interesting to some of you. I ran the question through ChatGTP AI and this was the response:

Q: What is the best diesel additive considering the recall of the Bosch cp4 fuel pump?


AI: As an AI language model, I cannot provide a specific product recommendation for the best diesel additive, as the choice of diesel additive may depend on several factors, such as the type of vehicle and the specific diesel fuel being used.
However, with regard to the recall of the Bosch CP4 fuel pump, it is important to note that the use of a diesel fuel additive may not necessarily prevent or resolve issues related to this recall. The recall is due to potential failure of the fuel pump caused by metal particles in the fuel system, and adding an additive may not address this issue.
If you are experiencing issues related to the recall of the Bosch CP4 fuel pump, it is recommended that you contact a qualified mechanic or your vehicle manufacturer for guidance on how to proceed.

That AI response is a big word salad. Skynet coming online is a couple more years out if that is bleeding edge AI.

 

[ShadowsPapa]

That AI response is a big word salad. Skynet coming online is a couple more years out if that is bleeding edge AI.

I don't get what's special about using AI to answer questions like that. It's simple combing existing posts in various places, stories about the failure and combining things from each bit it finds. It's less useful than just doing the research.
Actually, research should not be necessary since the failure isn't due to a lack of lubricity of the fuel.

"but I use the best additive in the world and my pump has not failed!"
Yeah, and you could have used nothing and had it not fail.

"But it failed when I forgot to put in additive"
Proving nothing because it could have been ready to fail next week anyway, even with the additive.

In other words - the AI response is a big DUH!

I suspect we are safe, and unlikely to see any Model 101 coming our way any time soon.

 

[Mr._Bill]

Thought this might be interesting to some of you. I ran the question through ChatGTP AI and this was the response:

Q: What is the best diesel additive considering the recall of the Bosch cp4 fuel pump?


AI: As an AI language model, I cannot provide a specific product recommendation for the best diesel additive, as the choice of diesel additive may depend on several factors, such as the type of vehicle and the specific diesel fuel being used.
However, with regard to the recall of the Bosch CP4 fuel pump, it is important to note that the use of a diesel fuel additive may not necessarily prevent or resolve issues related to this recall. The recall is due to potential failure of the fuel pump caused by metal particles in the fuel system, and adding an additive may not address this issue.
If you are experiencing issues related to the recall of the Bosch CP4 fuel pump, it is recommended that you contact a qualified mechanic or your vehicle manufacturer for guidance on how to proceed.

So, how do you get metal particles in the fuel system that causes CP4 failure? I thought the CP4 failing filled the fuel system with metal particles that then did a massive amount of damage? Foreign objects entering the fuel tank are supposed to be trapped by the fuel filter.

 

[Teqsand]

So, how do you get metal particles in the fuel system that causes CP4 failure? I thought the CP4 failing filled the fuel system with metal particles that then did a massive amount of damage? Foreign objects entering the fuel tank are supposed to be trapped by the fuel filter.

You get the metal FROM the pump.... and it spreads from the injectors to the tank

 

[Mr._Bill]

You get the metal FROM the pump.... and it spreads from the injectors to the tank

Is it particles coming off the pump during normal operation, or only when it starts to fail? I have not seen anything about metal in the fuel until that AI clip was posted.

I only know what I read on this site about the issue. I don't have, or want, one of the current (DEF required) diesel engines.

 

[Teqsand]

Is it particles coming off the pump during normal operation, or only when it starts to fail? I have not seen anything about metal in the fuel until that AI clip was posted.

I only know what I read on this site about the issue. I don't have, or want, one of the current (DEF required) diesel engines.

The roller in the pump gets cocked and causes the pump to basically implode... when it does it spews metal into the system....

 

[Gladbrennan]

European Diesel is the answer, the Bosch pumps work perfectly with it just dont use US diesel. Simple solution.

 

[Teqsand]

European Diesel is the answer, the Bosch pumps work perfectly with it just dont use US diesel. Simple solution.

Sorta difficult to not use US diesel when in the US

 

[Gladbrennan]

Insert sarcasm*
Everyone thinks that Bosch dropped the ball when designing the pump for North America which is the reason why people keep dumping snake oil additives into their tanks.

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