Fuel performance enhancer designed to prevent and cure all problems caused by ethanol due to ethanol's corrosivity and high affinity for water. Designed to prevent fuel system corrosion and stabilize ethanol gasoline. Works as a fuel system cleaner to cut down on deposits, gum and varnish buildup.; For use on all 2 stroke and 4 stroke engines Lubricates fuel system components Stabilizes and extends fuel life Prevents corrosion and problems associated with ethanol fuels 1 oz treats up to 5 gallons of fuel