I get an average of 15 mpg mixed driving, see my specs below. The best I think I ever got on a tank is 18 on a trip to Idaho. I do keep it around 70 on the freeway, I am betting I would do better at 55-60 but It's not my daily driver.
I have seen many people claim much better, but everyone I know personally with a PSD is pretty much on par with me. A couple MPG's better on friends with stock tires no level kit with intake chip etc. Everyone else I know has close to same spec as me or 4" lift with 35"s instead of level but they are on par with me as far as mileage. Have a lead footed friend running 8" lift with 38's getting about 8mpg.
Last edited by utah300rum : 08-08-2008 at 08:58 PM.