Drove to Lake Havasu and back this weekend, total trip was approx. 400 miles. Boat is 6500 lbs., loaded on the trailer. Got 14mpg going there and 13mpg coming home. I used to get 9mpg with my V10 Dodge. Man was I happy to get 13.5 average for the trip!! I was only going 58-60 mph, but, that's what I used to do in the Dodge also. The dmax has only 6000 miles on it, so, it might even open up some more yet! I couldn't be happier with my new truck!!:ro) :cool2: