Krazy,

I bought one 9,000 miles ago, and the thing gets crappy fuel mileage, 12-13 around town, and up to 15-16 highway....that is, unless I cruise on the Freeway, DOWNHILL, at under 65, then it is pretty dang impressive!
But who can do that consistantly....forkin' OTHER traffic will run yer azz over out here...
It's a 4X Dually, and I s'pose that don't help much neither!!!

My other 4X has a Hemi, and that is even worse, around 11 in town, and up to 16 when the cruise is set, and I stay under 65,again, DOWNHILL---Whoop-dee-forkin'-do!

I was gonna "chip" the Diesel rig, but I had a BIG HEADED Diesel Guru tell me not to bother, it weren't gonna help much, plus it could cause tranny problems on the automatic---So I dunno what to do....but both them trucks are awful thirsty all the time is what I DO know!

I think maybe if you get a 2-wheel drive, lightweight truck, ya might could do alright on fuel consumption....but if ya get one of those, why get a truck anyway????

U.D.