2007 BMW 335i - GC 0w30

[ryanm8]

Hello guys. Just got back my first UOA for my 335i.

They list everything as normal, but I'm a bit concerned about the viscosity. I can't recall ever seeing GC shear down to 10.3 cSt. There is no coolant or water in the sample, but I'm thinking there may be some fuel dilution. Unfortunately, I didn't realize this lab doesn't supply fuel dilution numbers.

I looked at some Blackstone reports for this engine and the universal averages show that my copper and aluminum numbers are equivalent to other 335i's running 6k miles (I only ran 3k), so I'm a bit concerned about that. Maybe due to the low viscosity? I have switched to M1 0w40 in my latest oil change.

FYI, I am tuned and pushing about 400whp. What do you guys think?

 

[deven]

Yup GC is usually on the thick side of 30 but it's a 335i tuned so it's expected. I wouldn't worry about it. The wear numbers are fine. I think the 0w40 should work better so good call on going with 0w40

 

[Dyusik]

No fp or fuel level. Ot could be simple fuel dilution. Even with that, you're looking good!

 

[901Memphis]

Nothing wrong with this report, double it easy!