At 12mpg and using about 11gallons from the tank, roughly 130-ish miles with a stocker in decent running order. Not sure where the true empty is as far as the fuel pickup, but seems like you'd want at least a gallon left in there, although can likely pull a little more. Some get better mileage and some get worse, if you're around 100 miles better be looking for some go juice unless you know your sled well.