Truck trends one year with ecoboost 14 mpg average

Just pulled a 2 place trailer with 2 sleds for 500 miles and averaged 15 MPG @ 65MPH. I was traveling with a 2010 5.4 pulling 2 sleds and he got the same mileage, within a tenth or two. Total weight on both rigs was probably around 8500-9k lb with 6 tires on the ground plus some extra drag and still got better mileage than an empty gas 3/4 ton.

It's not a prius but hangs with the 6.2 without sacrificing fuel economy. Plus, you can hypermile it like a standard V6 if you don't mind taking it easy.