2012 F150 4x4, 373 rear end. I drive 120 miles to work, each way, every day. Its all Ohio turnpike with the exception of on the six miles to the pike entrance, and the two miles from the pike to my office. On a good day on the highway, I have been able to get 16.9 mpg. That's only when I wait until I get up to turnpike speed (70 mph), set the cruise, and reset the calculator. I know we are all told to wait until the engine breaks in. I have 31000 miles and I am still waiting. On the days that I get a 10 mile and hour or greater head wind, I am down into the 13's. I traded in my 5.4 Triton for this. Mistake.