Just changed the oil for the first time since buying the car. with new mobil 1 filter and 6qts started motor for a minute and shut off and let it sit for a minture or 2 and oil was just noticable on the stick. I did put another 1/2 quart and its now in the middle of min/max. I dont want to over fill this thing anymore and have windage issues. So should full be the mid point on the stick. Not sure if this is common or what with these cars. I thought it was a 6 qt system with filter change.