Valvoline AFI-12P Pyroil 12 oz Fuel Injector Cleaner Cleans fuel injection systems by removing deposits that plug injectors, Composed of highly concentrated detergents and dispersants that promote maximum engine efficiency, Compatible with all modern pollution control equipment, catalytic converters and oxygen sensors, Will not harm fuel injectors and also cleans internal deposits from carburetors, Works in one tankful, One treatment lasts up to 2, 000 miles, EPA registered, 12 oz. Valvoline AFI-12P Pyroil 12 oz Fuel Injector Cleaner Features: Fuel injector cleaner Cleans fuel injection systems by removing deposits that plug injectors Composed of highly concentrated detergents and dispersants that promote maximum engine efficiency Compatible with all modern pollution control equipment, catalytic converters and oxygen sensors Will not harm fuel injectors and also cleans internal deposits from carburetors Works in one tankful One treatment lasts up to 2,000 miles EPA registered 12 oz