The Champion Power Equipment 100231 5500 W dual fuel portable generator with wheel kit is designed with versatility and convenience in mind. An ideal companion for your next weekend project or wherever you might need additional power, this generator can also provide plenty of backup power for your home during an outage. Operate your Dual-Fuel generator right out of the box on gasoline or propane and easily switch fuels with our patented fuel selector switch that allows for safe switching between fuel sources. Using gasoline, the 389 cc Champion engine produces 6900 W starting and 5500 W running and will run for 10 hr at 50% load when the 6.1 gal fuel tank is full. When using a 20 lb propane tank, it produces 6250 W starting and 5000 W running and will run for 6.5 hr at 50% load. Also included is a 3.3 ft propane hose with a built-in regulator. With a noise level of 74 dBA from 23 ft, which is a bit louder than a vacuum, this machine features cold start technology to ensure a quick start in cold weather. The Volt Guard™ built-in surge protector prevents overloads and keeps your equipment safe from spikes in voltage, while the Intelligauge monitors voltage, frequency and operating hours. Outlets include one 120/240 V 30 A locking outlet (L14-30R) and four 120 V 20 A GFCI protected household outlets (5-20R). Designed for safety with a low oil shut-off sensor plus an included oil funnel, this unit has a 1.2 qt oil capacity (recommended 10W-30). Champion's thoughtful packaging make setup hassle free, while the foldaway U-shaped handle and included wheel kit with never flat tires make it a cinch to move your power where you need it. Buy this EPA certified and CARB compliant generator with confidence Champion Support and our nationwide network of service centers will back your purchase up with a 3-years limited warranty and free lifetime technical support.