I have a 'o3 GMC CC 2500HD 6.0l 2wheel. I have about 30k mls. The highest I have gotten on a full tank is 16.2mpg. That was driving at 65mph with the bead full of a few hundred lbs of camping gear. The low is 10.5mpg on the hwy with a 16ft trailer full of deer stands, cabins, generator, 4 wheeler, feeders, ect and the bed full of feed, fuel, and beer. My hour meter divided into the number of miles puts my average mph at a somewhat high 37. In those miles I average a little over 13mpg.

By the way, all you new GM owners know you have an hour meter. I forget the exact way to get to it but first turn the key off and remove, either press and hole the trip odometer reset or press the odometer reset until it is displayed.

Reply

Quote Reply

Digg It

Del.icio.us