Reviewed By Steve S (MARION, TX) Reviewed for a 2008 Ford F-250 —8/17/2015 5:10 PM
This thing is unreal. I wouldn't have believed it if I hadn't seen it myself. I have a V-10 F-250 I drove it 150 miles on the economy setting. It used only a 1/4 tank of gas. Best money I ever spent. I've had it a month and it already paid for itself.