Engine oil VALVOLINE or PENNZOIL

Cummins uses Valvoline premium blue.

Finally ended up with Penzoil Plat. Can't tell a difference at all when the oil is fresh. Also engine never burned oil on Penz.

Similar with my Audi but with Valvoline.

I have been running Pennzoil platinum euro in my 16 GTI its entire life and its now at 125,000km. I ran the same oil in my 2007 GTI before I sold it up until 190,000km. Never had a single problem, neither cars burned any oil.

This weekend, the oil that's in it is coming out (it's clean) and Valvoline Restore and Protect is going in. Rationale is there will undoubtedly be deposits on the pistons, in the piston ring grooves and ring lands.

Pennzoil Platinum Euro 5W-40. It’s LL01 approved

I used pennzoil platinum euro blend in my 2014 Veloster turbo for probably 50k+ Atleast with no trouble.

I switched to the Pennzoil Ultra Platinum, which is made from natural gas and it's probably the best full synthetic oil available now, IMHO

I see all these people shit talking the oil, but they haven't actually used it. I've used it, and it's great. I put it in one car (pontiac) with over 70k miles and it ran way better than with normal full synthetic. I got a 02 explorer with almost 200k miles, it was idling rough as hell. I thought it would need a tune up, spark plugs, ignition coils, oil change and air filter. One bottle later, started it up and it was almost silent.

I run 5w30 in my 17 tundra, 16 Corolla and soon my 23 4Runner. My Tundra was noticeably quieter after the switch. The Corolla was quieter, but the change was not as dramatic as the 5.7 V8 in the tundra.