Originally Posted by Mthrice
Every five thousand or so miles I add a quart of oil to my M3. I don't notice black smoke billowing from the exhaust, so where is this oil going? I know M3s are known for burning oil, but this is ridiculous!
Into the combustion chambers.
You aren't going to see such a tiny amount of oil being burnt off. You need to reset your expectations. A qt every 5k miles is totally fine.