Ecoboost 3.5 Towing MPG Sucks

So true. It seems that no matter the engine size and axle choice, a gasoline engine uses near the same amount of gas for power needed to do the same job, pull a brick down the road at a given speed. My little 4.0L V6 gets 9-11 MPG speed and hill dependent. Flat land, no wind, interstate 65 mph was the 11mpg. Trying to run 70s and/or hills on the interstate gets me almost down to 9mpg. Backroads with minor hills and no wind, I get 9.5 to almost 10mpg. Non towing interstate 75MPH, its near 19mpg. Daily in town I only get 12.5mpg because I have to go up and down a mountain to get anywhere.