than what the owners manual calls for at service.
For example, the BMW M-cars that take 10w60 don't actually come from the factory with it. Their factory fill is/was a dino 5w30 with an initial OCI at 1500 miles.
Does BMW actually get some kind of penalty for this? I know that automakers get a credit for back-specing lighter oil on older cars (like Toyota and Ford now recommending 5w20 for 20-yo cars), so does that go the other way around too?
Or was the BMW FF 5w30 done for CAFE reasons? If so, that's a strange loophole! Factory fill all the cars with Royal Purple 3.1!
For example, the BMW M-cars that take 10w60 don't actually come from the factory with it. Their factory fill is/was a dino 5w30 with an initial OCI at 1500 miles.
Does BMW actually get some kind of penalty for this? I know that automakers get a credit for back-specing lighter oil on older cars (like Toyota and Ford now recommending 5w20 for 20-yo cars), so does that go the other way around too?
Or was the BMW FF 5w30 done for CAFE reasons? If so, that's a strange loophole! Factory fill all the cars with Royal Purple 3.1!