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Fuel Additives

STP® fuel additive products can help maximize fuel efficiency and help you avoid problems such as rough idling, weak acceleration, stumbling and stalling.

• STP® Gas Treatment

  Regular use keeps fuel injectors and intake valves clean.

• STP® Super Concentrated Gas Treatment

  Cleans with twice the cleaning agents of our regular gas treatment.

• STP® Fuel Injector & Carburetor Treatment

  Keeps fuel injectors and carburetor clean and reduces engine friction.

• STP® Super Concentrated Fuel Injector & Cleaner

  Unclogs dirty fuel injectors.

• STP® Complete Fuel System Cleaner

  Cleans and protects entire fuel system from performance loss.

• STP® Fuel System Cleaner for Ethanol

  Removes ethanol fuel deposits. Helps prevent rust and corrosion in fuel systems.

• STP® Super Octane Booster

  Uses maximum street legal level of MMT to boost octane. Also contains a high level of detergents to clean fuel intake system and help restore performance.

• STP® All Season Water Remover

  Ensures cold weather starts by fighting fuel line freeze and corrosion.

• STP® Diesel Fuel Injector Treatment

  Unclogs dirty fuel injectors.

• STP® Winter Maintenance Formula

  Cleans fuel injectors and removes water.