Unless it makes your engine leak or burn too much oil fully synthetic oils are always the way to go because they pretty much halt the wear cycle wherever it is .

I've been using it for decades now and have several older, high mileage engines that run as-new on it, I deal with the weeps & seeps .

Oil is always the "Cheap Mechanic" .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better