I've been towing about 5000 miles per year for the past few years now with my rig (see signature) throughout the western states. With the escalating fuel prices, I am very happy with the milage I've been averaging. Uphill down hill, it doesn't matter. I can easily pass on any hill towing at over 70mph if necessary. I was wondering what other RV'rs of similar rigging are getting, Diesel or Gas.
City 21 mpg
Towing 17 mpg @ 16,000 lb. GCWR

City 21 mpg
Towing 17 mpg @ 16,000 lb. GCWR