quote:Originally posted by Trajan:
This the most reasonable post, IMO, of this entire thread.
The days of thick oil aren't completely gone though. (BMW S54 engines for example.) But I doubt that any Z4M owner would use Synlube.)
The Europeans are using thick oil!! 5w-40. It is the 5w that pumps during a cold start. The 5w-20 is only for CAFE standards,..look it up,it's a fact.