Chevy Duramax Fuel mileage
I am looking for an honest answer from actual campers. I am considering buying a used 2005-2008 Chevy 2500 w/Duramax with a Alison Tranny to tow a 10,000 - 11,000 Fifth Wheel. Those of you that have a...
Forum Discussion
robrose1 wrote:
2006 LBZ
empty around town solid 14mpg
Hwy under 65 19-21
over 65 17-19
Towing max 10k 10-13mpg depending on wind. at under 65mph
same truck and this is probably pretty close to inline with what I see. I run a 90HP tow tune on mine. Typically towing a 10k 5er from Ohio out to Central PA a couple times a year I see 12-12.5 depending on the wind. I've checked it highway only (non-towing) before and saw 22-23 but that's pretty rare so I would probably say 20ish would be the norm. Combined driving I'm usually in the 16-17 range if I keep my foot out of it.
