recently bought the sled so don't know history. It was burning/drip about 1 qt oil per 100 miles. I was told that is about normal on older sleds, and we were driving long and hard. Turns out the oil my have been leaking as I noticed a small dripping after stopping and then going. The last outing about 75 miles the light came on and I added oil. got to the next stop and I was down, so bought another qrt at bar. There were some dripping. Next stop about 25 more miles light off again. filled it up once again and decided to trailer it home when the dripping were a bit more substancial sitting there. Weather dropped to -34 so didn't look at it for a few day, when I did all the oil in the reservior was on the garage floor. We thought it might be a supply line or cracked reservior but they seem fine. We see no oil around reservior, supply line or pump. Add cup oil and put clean card board under sled, it all leaked out, not running. Anyone experience this problem?