GAWR: Gross Axle Weight Rating. The maximum allowable weight each axle is designed to carry, as measured at the tires, therefore including the weight of the axle assembly itself. GAWR is established by considering the ratio of each of its components (tires, wheels, springs, and axle) and rating the axle on its weakest link. The GAWR assumes that the load is equal on each side. GCWR: Gross Combined Weight Rating. The maximum allowable combined weight of the tow vehicle and the attached towed vehicle. GCWR assumes both vehicles have functioning brakes, with exceptions in some cases for very light towed vehicles, normally less than 1,500 pounds. (check your chassis manual or towing guide). GVWR: Gross Vehicle Weight Rating. The maximum allowable weight of the fully loaded vehicle, including liquids, passengers, cargo, and tongue weight of any towed vehicle. NCC: Net Carrying Capacity. The maximum weight of all personal belongings, occupants, food, fresh water, LP gas, tools, dealer installed accessories, etc., that can be carried by the RV. (Technically, the GVWR less the UVW equals the NCC.) Payload Capacity. The maximum allowed weight that can be in or on a vehicle, including all cargo and accessories, fuel freshwater, propane, passengers and hitch loads. UVW: Unloaded Vehicle Weight. The weight of a vehicle as built at the factory with full fuel, engine (generator) oil and coolants. It does not include cargo, fresh water, LP gas, occupants, or dealer installed accessories. water (weight): 8.3 lbs. per gallon LP gas (weight): 4.5 lbs. per gallon driver (estimated weight): 200 lbs. passenger (estimated weight): 120 lbs. Gasoline: weighs 6.3 pounds per gallon Diesel fuel: weighs 6.6 pounds per gallon Propane: weighs 4.25 pounds per gallon

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