Originally Posted by 742
Neither one is right. You want the Castrol Syntec 0W-30 or the Mobil 1 0W-40. Both of these oils meet the BMW LL01 specification. Castrol Syntec 5W-30 and Mobil 1 5W-30, both as sold in the United States, do not.
Or of course the BMW 5W-30, which while it comes from Castrol is not like the 5W-30 that we buy at the parts stores.
If it were me I would not panic, but I would change it much sooner than the CBS calls for.
After reading through the numerous posts on this subject, I decided to just get the castrol syntec 0w-30 european formula...I swapped out the oil yesterday. I bought my car with 17k miles and now it has 27k miles. The whole time i was using castrol syntec 5w-30 but atleast now i learned my lesson and now i have the right oil...i guess its good i dont drive the car that hard since i had bad oil for 10k miles