WOW! My 07 6.7 4wd is terrible! I get 11.5 at 65Mph pulling my 28 footer. I have gotten almost 12 one time. If I go up to 75 its goes down to 10.
Do the chips really help fuel mileage on the Dodges? I put Edge on my 04 Powerstroke and I could have towed a train but it didn't help the mileage at all.

Last edited by Irun6snd8th; 01/29/09 12:34 PM.
AFCO, Rons Fuel Injection sponsored Dodge Challenger Mention Street Lethal Motorsports