Check the listing for details. Archoil AR6400-G Fuel System Cleaner For Gasoline Engines. Condition: New. Listed at 24.95 USD. AR6400-G Professional PEA Concentrate For Gas and Ethanol Blended Gas AR6400-G (12 oz) treats 12-25 gallons of fuel. Use one bottle per 12 gallons of fuel for deep cleaning. AR6400-G fuel system and engine cleaner uses PEA (polyetheramines) and PIBSA detergents to remove deposits on intake valves, injectors and in the fuel system and combustion chamber. Use AR6400-G to eliminate rough idling and increase fuel efficiency.AR6400-G will combat pre-ignition, increasing power and response.AR6400-G is suitable for 4-stroke gasoline engines. It is not suitable for 2-stroke engines. FEATURES & BENEFITSCleans fuel system and injectorsReduces combustion chamber depositsCombats pre-ignitionIncreases power and responseLowers harmful exhaust emissions USAGE INSTRUCTIONSOne 12 oz bottle will treat up to 25 gallons of gasoline. Pour the entire contents of the bottle into a nearly empty tank and refuel with up to 25 gallons of gasoline. For best results do not fill the tank over 25 gallons regardless of its capacity.Use every 5,000 miles or use once and follow up regularly with Archoil AR6200 Fuel Treatment. AVAILABLE SIZES12 oz bottle