- May 17, 2009
- N.H, U.S.A.
Read post #18 and #19. Engine mechanical knocking when hot 2019 Jetta S 6M lease vehicle. Happened on FF and Motul. Added a litre of M1 0W40 FS after a liter of the Motul 508 burned off, then oil burning stopped and engine didnt have engine noise for over 6K miles when the lease vehicle was returned. High rpm high load performance improved also. That points to inadequate HTHS/MOFT in any reasonable persons book.What was your drama with running 508? What car was this?