Oil that handles soot in oil (causing additional wear)

[Denniso]

Ok I am asking a question that is probably like asking which chocolates best but here goes.

Which oil handles soot suspended in oil better than any others. The only thing I am concerned with is the additional wear that occurs with soot particles suspended in oil and how to minimize additional wear in newer Cummings engines. I typically keep a truck 300k to 400k miles with heavy towing.

Or does it even matter, It's just there and can be better controlled by changing the oil more frequently?


Ram is saying 15k oil change schedule.

2018 Ram 3500 6.7 diesel

 

[SirTanon]

Simple answer for that vehicle - Anything CK-4 rated should work fine.

 

[SnowDrifter]

A good bypass filter will trap the soot. Though FWIW I don't think the presence of said soot will cause you grief. It'll be from the injectors and emissions system. Carbon buildup in the intake, DEF issues, etc

 

[DdDd]

I thought carbon was like some kind of nanoparticle that aided lubrication. Unless something weird is going on the soot should be smaller than the engine clearances.

 

[dnewton3]

Read my answer here ...
https://bobistheoilguy.com/forums/ubbthreads.php/topics/4813390/2/Do_you_run_a_bypass_filter_sys
post #4815277

Remember that in my explanation, the numbers exhibited are meant to be an example. The divergence of the BP and non-BP soot loading curves can, AND WILL, be slightly different for many applications. The only way to know for sure is to do PCs and UOAs with a lot of technical testing.


Any CK-4 oil made will more than handle the normal OEM OCIs.
Your Cummins will be fine; don't worry about it.

 

[CT8]

Do what the guys that run their semis trucks do with the over $50,000.00 engines in them.

 

[BrianF]

My first UOA on my Ram CTD, 24,000km on the oil and 48,000 on the truck showed .59% soot. Cummins stated that the condemnation limit for soot was 3%. Do I think soot is a problem? Unless I see it trending higher and higher, I am not worried. Don't sweat it.