Man I have a real problem with my fuel mileage. I like to travel to see all I can in our great USA so I got the best F-150 I could find, a 2012 Lariat super crew. I got out of a 2008 Silverado 2500 HD getting an average 13 MPG because of the fuel expense and was blind sided with a truck that has at times averaged 9.2 MPG. I have had this truck back to the dealer several times plus dealers in Colorado, Missouri and other PA dealers with the same answer, everything is ok. At 3000 miles I got my best mileage for a tank of gas, 18 MPG, but have not seen anything like that since, now at 21,500 miles. Does anybody have any suggestions to get me to at least 18 MPG highway besides trading it ?