I have a 2008 F-350 job 3 SWR shortbed with 4 inch lift and 20's and also a Edge Juice/w Attitude and I get a whopping 10.2 to 10.5 MPG. This is killing me. I'm going to try a Airaid cold intake next but I know the 20's are taking some mpg's also.
I had a 2003 F-350 7.3 DRW longbed and that got 13 mpg on stock wheels. I miss the 7.3