Powerland Portable PD3G8500E, 7000 Running Watts/8500 Starting Watts, Tri-Fuel Powered Portable Generator Tri-Fuel: gasoline, LPG (propane), ng (natural gas) Clean sine wave power for running your sensitive electronic equipment Super easy to switch between gasoline, natural gas and propane fuel Durable 16 HP, air cooled OHV engine w/ low oil shutoff and electric start Epa and carb approved with spark arrestor