I had only a few chances to get it out this season. The gas mileage range from 3.5-5 miles per gallon. This sled didn't have alot of maintenance before I got it. Right now we are out of snow and it looks like we won't get any till next year, so I am in the process of tearing it down and replacing crank seal, head gaskets, base gaskets and carburetor needle valve seat assembly. The engine has a small coolant leak plus crank seal leak. I will also be replacing the track if I take care of the leaks and get it runing descent. The track is just about bare. At most 3/8" of paddle, no studs. Alot of spinning.