Just completed an 1,800 miles round trip from St. Louis to Florida. I was towing a 5 x 8 aluminum trailer with a motorcycle and some gear. About 2,000 lbs. Overall gas mileage was 14.2 MPG. I actually got 15.1 MPG on the way to Florida (I guess since it's at a lower elevation than St. Louis) but less on the way back. I was hoping to average over 15 MPG with such a light load. I think I averaged about 70 MPH.