Originally Posted By: dparm
Originally Posted By: yannis
viscosity is irrelevant , you have to search for the appropriate specifications.
Viscosity is not irrelevant. You need to select the appropriate viscosity AND the appropriate specifications.
+1
And the appropriate viscosity is usually the lightest oil recommended by the manufacturer. In this case that would be the BMW 5W-30 but that isn't the cheapest oil. That would likely be M1 0W-40.
