Just finished hauling 13k lbs, 8k miles.
Lots of people ask about MPGS and I can attest, it DEPENDS.
We hauled our new camper around for 2k miles in GA, FLA and SC and always averaged around 10.5 MPG at a steady 60-65mph before this trip.
This what I expected going cross country and it started out that way.
From GA to St. Louis a steady 10.5.. From St. Louis to Yellowstone , WY right around 8.5 MPG.. Head winds take a huge toll , truck was working to stay at 55.. IF I tried to go any faster and I would have gotten 6mpg.
From Yellowstone to Salt Lake City, Utah.. 8mpg.
From Salt Lake City Utah to Bryce Canyon Utah.. 9mpg
From Bryce Canyon Utah to Moab , Utah 8.5 MPG.
Going over the Rocky Mountains through Vail Pass and down into Denver 10mpg.
All mileage numbers where hand calculated and were so close to the Lie-o-meter that I can no longer call it that.
BTW, Ford sheet metal and windshields are tough. Marble sized hail at 11,000 feet and not a single dent or chip.
From Denver to Amarillo Texas 8.5mpg, we were getting better then that until we hit some fierce head winds.
From Amarillo Texas to Dallas texas 8mpg.
From Dallas to New Orleans, 9mpg.
From New Orleans to Georgia. 10mpg
The infamous tick got much louder and we broke down and had to be towed for a mystery problem.
The radiator fan parameters needs to be changed. Going up a 6% grade at 30 degrees should not set the thing to screaming like mad.
One thing Ford can never be faulted for, this is one great towing truck, now if they would only put a Cummins or Cat in it..
The torque shift worked very well and tow haul is outstanding on steep grades. Going over the Rockies and the Bighorn mountains and not smoking the brakes was a real joy.