I towed a camper to Nevada with my Toyota and got 16 MPG ( Nine on the way down and seven on the way back
I have changed my mind about pulling a trailer with anything but a diesel if one is going to tow much. Coming back from the above mentioned Nevada trip, we were pulling into a strong wind, and trying to stay with traffic where the speed limit was 80 MPH. The Tundra is, in my estimation a hell of a puller, but that seemed to me to be asking too much of it. Since it looks like high winds are going to be a constant in the future and I am looking to do a lot of towing, I think I am going to a diesel, Ford probably or maybe Chevy.
Fred