knot-sure
Member
Since E10 will absorb moisture in your fuel tanks the ideal situation for winter storage is to completely fill the tanks and add some fuel stablizer for added protection. An empty tank creates more condensation in the tank and the ethanol attacks the water that could lead to "phase separation" . Once you get into this situation the fuel needs to be discarded. E10 is an awful motor fuel for boaters. PS the oil industry hates it too!