Is ok to use 20w 50 engine oil on my 2006 vw passat with 125,000 miles on it?
4 Answers
It could raise oil pressure enough to blow seals so it's a risk. Did he not suggest to change your piston rings? That's probably where the problem lies
You should locate and repair the problem The oil pump in your car is a gear type and will pump almost any viscosity oil until the oil pumps so hard that the pump shaft or gears will simply break, that's not a lot of miles it could be as simple as a pcv valve
They don't cost much you can replace it in order to check it, remove oil filler cap put you hand over the opening have someone start the engine after about thirty seconds remove your hand you should hear a whoosh and feel air being sucked into the engine if it does pcv is ok.
