Champion dual fuel generator with 459cc Champion engine. Runs on gasoline or propane. Gas: 10,625 starting watts / 8,500 running watts. Propane: 9,565 starting / 7,650 running watts. Features CO Shield carbon monoxide auto-shutoff — automatically shuts down if CO levels are detected nearby. NEVER run indoors, in a garage, or in any enclosed or partially enclosed space — carbon monoxide is odorless and deadly. Check oil level before each use. Use fresh fuel and add stabilizer if storing for more than 30 days.