50,000 miles on a 2012 F150 Supercrew 4X4 and according to the MPG readout, I have averaged 16.0 MPG for the 50,000 miles. I am good with that considering how much time my truck spends at the job site (low speed, idle time).
I can get close to 20 on the highway running 70 ish MPH. You can def tell a difference in the way you drive it.