17.2 Miles Per Gallon in this Unity Leisure Van mounted on a Mercedes Benz Sprinter 3500 with a 3L V6 engine. The brand "Leisure Van" is widely known as the highest quality and most elegant small motorhome. The Unity model is their top model, new one cost up to $200,000. This unit has been meticulously maintained.FEATURES: fully self contained, one slide out, both drivers and passengers seats swivel to the living area, 2 burner cooktop, microwave/convection, refrigerator operates on 120 v, 12 v and propane gas, pull out pantry, 26" TV/DVD mounted on swivel so it can be seen everywhere, two skylights, composting toilet (still have the factory one you can have), Intake/exhaust fans, air pressure extension valves on inside real dual tires, Hitch weight 500 lbs, towing weight 5,000 lbs, air conditioner 15,000 btu, furnace 16,000 btufresh water 30 gal, black water 29 gal, grey water 37 gal, Mercedes Sprinters are made to travel hundreds of thousands of miles, this one has just begun its journey.