We drove ours,'Cathy did',from Lindon to Monticello,US 6 to Greenriver ,than I 70 to 191,South.300 plus miles.Every driveing condition except bad weather.So we guess, it is broke in.Did change oil at 2000 miles.Can't except the fool that says he 'SAW' the bays in Jacksonville that does the oil changes.Hey,3 ouarts,whats the beef?Our f150 takes 7