Ethanol fuel, what should I do?

Ethanol is basically alcohol added to fuel to help boost the octane. Engine manufacturers have designed their motors to run on up to 10% ethanol safely. Although better for the environment ethanol blended fuels do have some drawbacks: Shorter shelf life, more corrosive than regular gas and it is hydroscopic (which means it can draw water right from the air). If you find that the gas in your boat is lasting a couple months or more between fill ups you should be using a good stabilizer made for ethanol. I prefer the Yamaha brand Fuel Stabilizer & Conditioner Plus. The stabilizer when used as directed will extend the life of the fuel up to one year and the conditioners will help to protect the steel and aluminum components in the fuel system from corrosion. Another important step to protect your engines fuel system is to have a water separating fuel filter installed and the filter should be replaced regularly. Portable gas tanks should be kept out of the sun with the fuel vent closed when not in use. Some but not all engines can be run out of gas when your done using it for the day. This ensures that the next time you use the engine your pumping fresh fuel into the carburetor and this should make it easier to start. Gas should be purchased from stations that have a high turn over rate. It makes no sense buying fuel that is already old. Ethanol and non ethanol gas should not be mixed together. Old gas, water in the gas or phase separated gas should be disposed of. There are fuel tank cleaning companies that can do this for you.