Just a thought. I reworked my engines twice in the past three years because of ethanol gas. If you do not have access to non-ethanol gas you will need to replace tanks with metal ones as the ethanol gas will eat the fiber glass resin in the tanks causing damage to intake and valves eventually eating tanks to leaking stage. Do not even try it. Some states will not sell non-ethanol.The resin tainted gas will glue your valves shut and push rods will bend or break. Tear engine down, steam clean intake and heads replace push rods, drain tanks of old gas and never use non ethanol with fiberglass tanks again. All is great now that I learned a valuable lesson before it ate through tanks. As the realization of the damage that ethanol can cause to recreational vehicles, non ethanol has become more prevalent up here on the St. Lawrence river. just read other posts. You already know about this. I still would not use ethanol gas in anything other than a automobile made to use it.