[135i_vs_]

Originally Posted by 335dsleeper

Looks like the same goo found in many of the higher oil change interval engines.

http://blog.**********s.com/15000-mile-oil-change-myth/

Forgot to mention, my oil change interval for that duration was close to 13,000 miles, as per the recommended BMW change interval for the 335d. Never needed to top off oil during this time.

I do remember checking the can previously I think in one of the earlier posts, around 7-8k oil interval, and I still remember seeing some build up (sludge?).

I wonder what the accumulation in the can looks like at 5k.
If oil related, I would hope there is no build up at 5k intervals.

BMW never updated that document for the 335d intentionally. So it was left at 13k.