Posted 5/27/2009 13:20 (#724604 - in reply to #724323) Subject: Re: duramax diesel fuel milage and chipping?
I have an '05 with an Edge w/Attitude on it. I can't see where it helped the mileage any, and I keep my foot out of it most of the time. There is a noticeable increase in power even on the lowest setting, which is supposedly for mileage. I don't know how some of these guys get the mileage they claim. I get 18-19 mpg. If I run 75 mph down the interstate, empty, I get less, maybe 16-17. Pulling a load, 60 mph...10-11mpg.
duramax diesel fuel milage and chipping?
