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STA-BIL ethanol treatment and performance improver. A complete fuel system cleaner. Cleans power robbing deposits from fuel lines, carburators, fuel injectors, and intake valves to improve engine performance. More than 4 times the fuel system cleaner than regular STA-BIL . Prevents corrosion from moisture and ethanol-induced water attraction. Double the corrosion preventer than in regular STA-BIL . Improves marine engine performance year round, not just for seasonal storage. Use in all 2 and 4-cycle marine engines, in gasoline, gasoline/oil mixtures, and ethanol blends. Also safe to use on all stored or infrequently driven collector cars, motorhomes, tractors, snowmobiles, motorcycles, lawn mowers, and all outdoor power equipment.