Has anyone run into issues with the ethanol seperating after sitting for awhile in their race cars? I have friends that build race boats and they are having all kinds of problems with the new pump mixture. I guess when sitting the ethanol seperates and the remaining compound absorbs moisture from the air and becomes virtually non combustable. When the ethanol is all used up of the top the rest of the liquid in the tank is useless and would have to be drained out. Something to be careful of in the upcoming off season.