201323 2500W Dual Fuel Inverter with CO Shield® GENERATOR CHAMPION Specifications Portable Generator Technology Dual Fuel, CO Shield® Gasoline Starting Watts 2500W Gasoline Running Watts 1850W Propane Starting 2500W Propane Running Watts Gasoline Running Amps at 120V 15.4A Propane Starting Amps at 120V 20.8A Propane Running Amps at 120V Intelligauge with Power Meter Automatic Voltage 10W-30 Engine Oil Included