Newer D/A owners, please chime in.
In my quest of purchasing a new TV/DD, I decided to swing by my local GMC dealer this weekend to check out their offerings. The only Duramax they had was a 3500 Denali. Took it for a ride and wa...
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Just got back home from Palm Springs,put on approx. 3500 miles towing a 15 k fiver,23500 GCW,avg 10.5 US mpg,speed from 63-68 mph,heavy side and frontal winds for approx. 1000 miles coming home.IT is a different truck now after a good heavy pull with a lot more power in the mountains.2015 3500 dmax srw.
