Forum Discussion
PRodacy
Jul 10, 2014Explorer
I had a k2500HD with the 8.1 and a. Allison transmission. Pulled a 8000 lb trailer. More than enough power - rarely even downshifted in the mountains. The only downside was that mileage was about 11 mpg empty and 8 mpg when towing. I now have a GMC dually diesel, Allison transmission. I have a 4000 lb cabover camper and tow a jeep on a trailer. I easily get 14 mpg, and about 20 empty and have a lot more power than the 8.1 had. If you drive a lot of miles, the diesel will pay for itself in fuel costs, but either has more than enough power for what you're pulling.
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