roamer
Registered user
The 40/50 is the hot viscosity with synthetic, its thinner when cold,
So worst of both worlds using 15w 50, too thick hot or cold,
Regardless of oppinion, bmw state 5w 40,
If nothing else you are making an informed decision.,malco,,
So worst of both worlds using 15w 50, too thick hot or cold,
Regardless of oppinion, bmw state 5w 40,
If nothing else you are making an informed decision.,malco,,