Protects all gas-powered 2- and 4-cycle engines from the harmful effects of ethanol. Prevents phase separation, protects against corrosion, cleans the fuel system, stabilizes fuel and restores power. Equally effective in E10 to E85 fuel. 1 oz treats 10 gallons for in-season protection. 1 oz treats 5 gallons for storage. Stabilizes fuel for 12+ months. Once phase separation has occurred, fuel cannot be recombined. May not prevent phase separation under extreme environmental conditions.