I have towed my Honda Pioneer 500 a lot of miles, round trips to Colorado are 2000 miles, biweekly trips to our hunting lease is 150 miles. It's always amazed me that my F-150 will get 20 to 22 mpg empty. I got 15.6 mpg pulling a 22 foot Stratos bass boat, with a 200 Evinrude, on a tandem trailer at freeway speeds going to northern Minnesota and back this Spring, but when I hook up to my 14 foot single axle trailer and put the 500 on it I get 12 to 13 mpg. A friend of mine, I go to Colorado with, pulled it with his Chevy 2500 diesel and it killed the mileage on his rig about the same percentage, too. The boat outweighs the 500 by a lot, specially full of all our gear like is on the trips to Minnesota. I've tried it with the windshield and rear glass out and it made no difference in the mileage. I've loaded it backwards and still no improvement in the mileage. I've had an idea to try some kind of reflector on the front, for a while now, but never got around to trying it. Yesterday I wanted to bring a lightweight hollow core door home from the lease, so I strapped it on the front of the 500. Went from 12.5 mph, on the crooked hilly two lane road I've driven a 100 times, to 15.2 mpg. When I got on the freeway for a few miles the mpg increased to 15.5. I've never got over 13 mpg before, usually closer to 12. I going to get a sheet of 1/4 or 3/8 plywood and rip some 2x2s out of some light weight spruce and build one that reaches all the way to the top of the cab of the 500 and see how it goes.