Originally Posted by JARblue

I've filled my Z with a 5 quart jug of Mobil 1 oil in every oil change (except 2) for 7.5 years and 100K miles. Fills it up to the top mark every time. Don't put 6 quarts in. Check it a few minutes after filling.

You don't need to run the damn car. Quit checking oil while the engine is running or after it has been running.