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Archoil 6400 Fuel System Cleaner

Archoil 6400 Fuel System Cleaner

$ 24.95

AR6400 is a powerful next-generation fuel additive blended from the latest high-strength polyetheramines and BIPSA/PIBSI detergents that quickly and safely remove gum, varnish and carbon deposits from the fuel system and engine. Advanced combustion modification chemistry then maximizes combustion performance to help remove post combustion hydrocarbon build-up whilst rapidly reducing harmful exhaust emissions.


AR6400 quickly restores lost engine performance and fuel economy in addition to unique properties that help protect surfaces from further deposit build-up. Molecule by molecule deposits are safely removed from intake valves and piston tops thus improving combustion efficiency and reducing the propensity for pre-ignition.


AR6400-D is suitable for diesel engines running on pump, bunkered, or biodiesel blended fuel. AR6400-G is suitable for 4-cycle gasoline engines, including ethanol blended fuels and biofuels. AR6400 is not suitable for 2-cycle engines. AR6400 contains the highest safe amount of PEA and accompanying chemistry to safely remove deposits.



  • Cleans harmful deposits and prevents future accumulation
  • Restores fuel efficiency
  • Improves fuel economy
  • Restores power and performance
  • Smooths rough idling
  • Lowers harmful exhaust emissions
  • Reduces octane requirement (for gasoline)
  • Increases cetane value by up to 7 points (for diesel)




Add the correct amount of AR6400 to the fuel tank first and then fill up with fuel immediately afterwards. 16ozs will treat up to 30 gallons of fuel.  After initial treatment, switch to AR6200 Fuel System Treatment at each gasoline fill-up to keep your system clean and fuel efficiency at it's highest level.