yer my car made, 312awkw, on 19psi, i service my car alot, the oil has never been in teh engine for longer than 3000k since ive owned it, and my cars only got 70klm on it, and it has been looked atfer all its life, it also only gets drivin prob twice a month, i always use top shelf oils, and its a really safe tune, see how it gose after a trackday this weekend : D