So I will probably be pulling our boat in a week or two. A little early but son is getting married in October and we will be busy. So I currently have about 1/4 tank of Valvetech ethanol free fuel in it. I store it in an underground mine with alot of humidity and must have less than 1/4 tank of fuel. I have a plastic tank. So in the past I have used E10 fuel with Star Tron. Should I use Star Tron with the ethanol free? Or anything else? I will fog it when winterizing but as far as the fuel in the tank anything special?