Originally Posted by catalyst
I seem to recall a small bearing issue regarding the s54 myself, and i have to say that the BMW recommended 10w30 that is used every 15k oil change probably does not suffice and most likely had something to do with the problem. That is speculation on my behalf though.
The S54 uses 10W-60, not 10W-30. I have yet to see any bearing issues in the service bulletins with the S54 either.