fastrob, I'll chime in with the rest. Our first Airstream was a 62 Overlander, we pulled it with a V10 F250 4x4 CrewCab. Towing mileage was around 10 in general, sometimes more but I don't think ever less. After seeing some Caravels we decided that we could live with a smaller trailer (another lesson learned) so we sold the Overlander and bought a Caravel
. Towing mileage was low and behold 10 - even though we were towing 1/2 the weight. In the meantime we hired someone to do the heavy towing and hauling I was doing at work so I no longer needed a V10 pickup. It was 2-1/2 years old and had 117,000 miles so I got a Honda Ridgeline. The Caravel
more than fit in it's tow rating. Towing mileage with the Honda 9-10 mpg. It did get about 5 mpg better when empty but towing it was generally less than the V10. To save wear and tear on the Honda I bought a dedicated tow vehicle - a low mileage F250 4x4 460 V8 CrewCab. Towing the Caravel
- 9-10 mpg (even hit 11.5 in New Mexico at Easter). Now we've bought a 25 International- about 6300 lb. Towing it so far with the 460 - 8-9 mpg.
It seems like no matter what I did, it cost the same to tow. We just bite the bullet, save where we can at home, and enjoy getting to go Airstreaming.