bobman wrote:
Could be the old truck had a more favorable differential gear ratio for the speed you were traveling
That's a reasonable possibility. Not much I can do about that, though! :W
And by the way, some of you mentioned headwinds. There were none.
Now that I realize that I have to stop for gas every 200 miles, I'm OK with it. I like stopping about every 3 hours anyway, just to stretch, pee - the usual. BTW, our other car is a Hyundai Ionic; great little car, not as goofy looking as a Prius, and gets 55 MPG at 75 MPH. When I average that out with the 12 MPG camper, it ain't all that bad a deal.