I just turned 40K on my 2011 F250, Crew Cab 4x4. I average 17 with mixed driving and about 19 on the highway @ 70 to 75 mph. My best on the highway is 21.3 mpg. If I didn't have the DEF it would probably increase 1 to 3mpg. The torque is awsome. I get 12mpg pulling my 29' camper. The 07'...