The guys that test rode the RX-1's in Timmins reported that on their first tank of gas they got just over 20 MPG's. When they topped off the second tank, it figured out to just over 24 MPG's. Keep in mind that the sled ended up having somewhere around 400 miles on it. Will it get even better as the engine breaks in??? I got 12 on my mach Z once and was esstactic (It averaged 10). I can't imagine doubling it. I know some of you will say no big deal with all of the other expenses with snowmobiling. But I say it is a big deal. When riding, I average two fillups a day (roughly 200 miles a day) at $20.00 a shot. Throw in a $10.00 quart of synthetic injecter oil daily and I'm gonna save $30.00 per day! With the RX-1 no more injecter oil is needed, 1 less tank of gas, and it's regular to boot not premium.