Powered by the Cummins Onan P4500i . your travels will be reliable . efficient . and long-lasting. Its 224cc OHV 4-Stroke Cummins engine . with 7.3 horsepower . generates 3700 continuous watts and 4500 peak watts while making the least amount of noise possible to promote silence. For added convenience . clarity . and readiness . its revolving digital display shows the quantity of fuel left in the tank . the power load . the runtime remaining on the tank . and the lifespan run hours. Permit it to run your entertainment systems . refrigerator in your RV . cell phone . and more! This appliance’s low total harmonic distortion makes it safe to use with delicate electronics. When utilizing unleaded gasoline with 10% or less ethanol with a gasoline fuel gauge . the Onan P4500i is an extremely fuel-efficient engine. Its 3.4-gallon fuel tank can run for up to 18 hours. Its safety features include automatic low-oil shut down . covered outlets . spark arrestor . and overload protection.