My 2012 3.6 L Pentastar takes EXACTLY 6 quarts. And I also let the pan drain for an hour before filling it up. Are you measuring on a level surface?
2012 Black JKUR. 15" wheels/33"tires, Hurricane Flat fenders, Trailforce HD rear bumper, Spiderwebshades on top and on Rancho tube doors, RR aluminum hood catches, QT tonneau cover, Mopar hood lock, Bestop underseat lock box