Though arguably as good for the environment as the electric powered Go-Ped product line, the Propane Powered Go-Peds with similar performance are significantly lighter in weight and more affordable.They use the very simple to use 16.4 once propane canister found at most hardware, and camping stores. Just "Twist and Go"! The added benefits in this new propane powered four-stroke are, no choking or priming is necessary to start. Though maintaining clean crank case oil is very important, clogged carburetors, fouled spark plugs as well the need for mixing fuel is eliminated.