2015 GTI, 75K miles, VW oil standard on this car allows both 5w30s and 5w40s. I've always used 5w40, no issues.
Sticking to 5w40 obviously means I can't use the newest stuff, which sounds like it designed for engines exactly like mine. Is there a significant enough advantage to the gf6/sp oils that would make it worthwhile to consider changing to 5w30 at this point with this car? It's specced for either, but Im not usually one to fix what isn't broken.
Appreciate any input
Sticking to 5w40 obviously means I can't use the newest stuff, which sounds like it designed for engines exactly like mine. Is there a significant enough advantage to the gf6/sp oils that would make it worthwhile to consider changing to 5w30 at this point with this car? It's specced for either, but Im not usually one to fix what isn't broken.
Appreciate any input