How could I figure out if this would be a good idea or not? No such oil was available when the incredibly complex BMW recommended oil chart for my 530i was produced, but 5W-30 is certainly allowed and I do use it (actually M1 0W-30). Just wondering, if I try a 20-weight how would I "test" it to see if it is "working"?
It uses almost no oil between changes now, and makes no weird ticking or any other noises. So I think the engine is sound. I just want to make startup as easy as possible in the currently harsh northern Wisconsin winter, where the car sits outside unprotected.
It uses almost no oil between changes now, and makes no weird ticking or any other noises. So I think the engine is sound. I just want to make startup as easy as possible in the currently harsh northern Wisconsin winter, where the car sits outside unprotected.