well over the weekend i have the chance to add the DD2 injectors. I am also running the new Banks Big Hoss box. Well with both of the together it is rather easy to make the clutch slip. looks like i will be in the market for a new clutch soon. Anyway this is something that i did not expect, 22mpg running 4wd from richmond Va to Charlotte NC. i was not running it the whole time but most of it. it is actually better than that because i am Running dunlop rover RV which are 315/75/r16. i dont know how to really find out the MPG but i am guessing its around 25. Pretty good for a 24 valve.