Just service the car last week, Drove the car in the morning and after 5 hours in a stationary position with the engine off, I coincidently I checked out the dip stick and the oil was at a minimum. The on board says that I'm a 1/4 liter short. Called BMW and they patch me through somebody at the service center who was at home and he said it should be normal and the oil level should return to near max tomorrow morning. He said if I was worried I could sent in the car on monday to verify the level.Question:1: Is this normal2: I asked could the sensor at the engine oil bay be faulty?3:I asked shouldn;t I follow the dip stick rather than the on board since its bare minimum. Reply says if onboard is ok, follow on board :hmmmm2::hmmmm2::hmmmm2::hmmmm2::hmmmm2:Anyone actually check out their dipstick rather than follow the on board as a yard stick??