Two weeks ago traded 08 6.4, to many problems, for the new tire smoker. 2600 miles already. 2011 f250 xlt sc 4x4 red. Towed 3 loads 4.5 tons each starting at 650 miles then a trip to Nashville from mulberry Arkansas about 475 one way. 14.8 on meter 70-85 mph going, return 14.2 on meter 75-85 mph, empty both ways. Great truck, real truck ride, you chevy guys know what I am talking about happy to be back in gas! I realy dont see great fuel numbers coming from this truck, at 5000 miles every 6 weeks I just have to stay bussy to keep the tank full. Great truck Ford ! Hope this is your best yet.