This is a heavy duty wheelhouse 5550 its surge watts is 8550.
I always used premium 93 gasoline and champion spark plug, kept dry in doors in my garage and stored without gasoline in the tank. Come with gas to start it right up, and a truck to load it on.
Last time it was used was during hurricane Irma, it powered up a large refrigerator, AC and 2 fans.
I bought a brand new one and have no use for this anymore.