Chevy Duramax Fuel mileage

rrbowman wrote:
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 combo similar, what kind of mileage do you get when towing and not towing? I know that is subjective because of driving styles but I consider myself a driver trying to get the best mileage. I have been told 22mpg around town and 16-18 when towing, is that possible?

Someone is dreaming! In the 2007.5 models (new body) fuel mileage decreased. And no truck gets 16-18 towing. Towing mileage for all the different diesels varies between 8 and13.5-14 depending on lots of variables. I get around 12-12.5 average with truck and trailer in my signature. Chris