[AKnowles]

I keep it one bar under max on the digital gauge when I measure it in my garage. This is just about topped off on the dipstick. I use the dipstick as the final authority for measuring the oil level. I have about 76K on the clock. I have not had to add oil once it is at the established level.

After an oil change, I slowly - very slowly - add oil until the dipstick measures just under full and the digital gauge is one bar under. This usually entails a brief drive to and set period to make sure the oil is everywhere it needs to be, then has had sufficient time to settle in the pan. I do it this way based on the concept that too much oil is bad for the engine so try to stay a little on the low side. If I were to put it on the track, I'd make sure it was 100% full.