"Ethanol is a very good cleani
"Ethanol is a very good cleaning agent and if you put E10 fuel in an older tank, you will flush all kinds of stuff out of the tank into the fuel system. That is why Yamaha tells you to use 10 micron filters on their engines. If you get any moisture in the tank with E10, it will mix with the ethanol and the water/ethanol mix will drop to the bottom of the tank and will be sucked up by the fuel pickup. Alcohol/water mix will go through a fuel filter and into the engine. It will not burn but will shut the engine down. Usually if you can drain it out of the engine, you can restart with no problem other than now the octance level of the fuel is less than what is needed by the engine. The new fuel stabilizers form a barrier between the fuel and air keeping moisture from getting to the fuel. Shelf life of E10 fuel is 2 weeks."
"Ethanol is a very good cleaning agent and if you put E10 fuel in an older tank, you will flush all kinds of stuff out of the tank into the fuel system. That is why Yamaha tells you to use 10 micron filters on their engines. If you get any moisture in the tank with E10, it will mix with the ethanol and the water/ethanol mix will drop to the bottom of the tank and will be sucked up by the fuel pickup. Alcohol/water mix will go through a fuel filter and into the engine. It will not burn but will shut the engine down. Usually if you can drain it out of the engine, you can restart with no problem other than now the octance level of the fuel is less than what is needed by the engine. The new fuel stabilizers form a barrier between the fuel and air keeping moisture from getting to the fuel. Shelf life of E10 fuel is 2 weeks."