Any preference with regards engine oil for my 2003 3.0i? Am sure this will have discussed many times before, aplogies in advance. :roll:
Ducklakeview said:Depending on the mileage of your car, if it's over say 50k then I would be using a fully synthetic 5w-40 rather than the 5w-30. Personally I use Petronas Syntium, if it's good enough for AMG and Mercedes formula 1...
The reason for the different grade is that some m54 engines can use a little between changes. Mike used to use maybe 400ml between changes, but uses none in the 5w-40. I haven't noticed an increase in fuel consumption either.
Mike