Bought this as a replacement for my 2001 crew cab duramax. I was a little worried about if it would be able to tow my 12000 lb trailer since it has the 6 liter gas engine. As it turned out it has no problem whatever towing it and the 6sp allison tranny is a joy. The mileage could be a little better but since regular gas is alot cheaper here than diesel it works out alright. I especially like the built in trailer braking system instead of having the aftermarket unit hanging under the dash. After 20000 miles I have not had a single problem with this truck . It is as tight and quiet as the day I bought it. I only use it for towing our 35 ft camper. Again love this truck.
Very poor performance, Everytime brakes applied, transmission shifted into neutral, truck would then rev up and jerk when you accelerated. Drivers side power window made terrible squealing sound as it went up or down. The speed control was disgusting. Couldn't adjust from downhill to uphill fast enough and would kick-out. I've had chevy trucks for 40+ years and lots of good ones, but this one was terrible. Chevy and the dealers didn't seem to care. Considering the cost of these trucks, they should be better
Just purchased a used unit with 93K miles on it. So far so good but the truck does need a new header stud bolt. Fairly common on vortec's. Gas mileage is 12 on commute and 14 on interstate. The 4.10 gearing plays a part in that but I knew that going in.
I have now had my '07 duramax 2500HD for two years (see review under by name) Over 30,000 miles later, I am even more impressed with this truck. I have had exactly no major issues.... None! This is not what I had expected since it was an American made truck. This is our car of choice for long trips...it is so comfortable. Gas mileage seems to be getting a little better with diesel engine (around 19 to 21 on long trips, 16 to 18 in town). I would buy this truck all over again.