11200 miles on unit with Dealer bulk changed at 6200 miles, 10W30 Penzoil Platnum back in with a FL500 filter. Oil life monitor showed 36% left and 331 total hrs with 53 idle hrs. This last fill had 3000 miles of towing 7500 lbs from Michigan to Atlanta multiple times. As far as the fuel % being higher the only thing that was different was I pulled the sample after on letting the engine idle a short time instead of after a road trip and some remote starting. The towing was done early in the oil change. 1st sample is factory fill and 2nd is dealer bulk. Next oil will be Castrol Magatec 10W30.