Lucas 5w-40 CK4 5k mi; 2024 6.7 powerstroke 20k mi

[JBMoy]

20k on motor, 5 k interval. Three weeks of this run had cold starts temps below zero F. Zero make up oil. Using VP racing oil filter

 

[fantastic]

The VR racing filter is that Valvoline? Sorry, Report looks good.

 

[JBMoy]

Made by champion. Same internals as Royal Purple with the screen backed white synthetic media

 

[56Cummins]

Surprisingly good numbers. I rarely think people should extend the run(usually the opposite). I would hit 7k next time.

 

[Donald]

Surprisingly good numbers. I rarely think people should extend the run(usually the opposite). I would hit 7k next time.

As long as the soot, fuel dilution, TBN and viscosity stay where they should why not increase the OCI?

 

[6.7 CTD]

I would send the sample to a lab that uses GC because of the 410 flashpoint and viscosity of 12.12 I suspect fuel dilution is more than trace; as noted in the report. I don’t necessarily think that it’s at a worrisome level, however. That way, you’re fully informed prior to extending oci’s instead of basing it solely on tbn.