Your 6500-watt portable generator operates on natural gas, propane, or gasoline, plus natural gas and propane hoses are included so the unit is ready to run on any fuel right out of the box Power up the 389cc Champion engine with the handy rocker switch Track voltage, frequency, session run time, and total run time to monitor output and track maintenance intervals, plus features CO Shield carbon monoxide auto shutoff system Gasoline: 8125 starting watts and 6500 running watts, propane: 7500 starting watts and 6000 running watts, natural gas: 6875 starting watts and 5500 running watts and engine oil is included Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts