Provide year-round corrosion and rust prevention. Removes water without alcohol and helps keep fuel injectors clean. Use with every fill up especially during winter and in warm, wet weather. Treats up to 79 litres.

Additives and methanol formula safe for use in all 4-cycle engines. Prevents gas-line freeze-up, rust and corrosion year round. Removes water from fuel system, absorbs moisture in carburetor. Improves engine performance for year-round quick starts. Safe on catalytic converters and fuel injectors. 1 bottle treats up to 10 gallons.

Helps save gas and improves performance by keeping fuel injectors and carburetors clean of harmful deposits. Helps prevent power loss, reduce engine friction and maintain optimum engine efficiency. Use regularly with fill up. Treats up to 79 litres.

Allows for quicker starts, helps prevent frozen gas lines and absorbs water. Can be used year round in 4-cycle gasoline engines. It will not harm catalytic converters, oxygen sensors or fuel injectors.

Improves the quality of gas and keeps fuel injectors and intake valves clean. Helps fight the accumulation of harmful carbon, gum and varnish deposits in the fuel system and remove water. Made with jet fuel, a high-quality carrier of active ingredients. Treats up to 21 gallons of gasoline. Use with every tankfull.

Helps to prevent deposit build up, fight rust and corrosion and remove water to help reduce gas line freeze. Use with up to 21 gallons of gasoline every fill up.

Helps clean entire fuel system, reduces intake valve deposits, increases fuel economy, removes water, fight gas line freeze. 1 plastic bottle treats 1 tank, use in every tank for maintenance.

Keeps fuel injectors and carburetors clean, restores lost power, reduces exhaust emissions. In a plastic bottle.

Solvent thoroughly cleans metal parts, removes soil and grime, paint and varnish. E-Z pour plastic bottle.

Unclogs dirty fuel injectors to restore performance and acceleration. Helps dissolve and remove harmful carbon, gum and varnish deposits on fuel injectors. Helps smooth rough idle and eliminate tough starts. Treats up to 21 gallons/79 litres of gasoline. Add to gas every 6,000km or every oil change.

Cleans the inside and outside of carburetor right down to the bright bare metal. Frees sticking automatic chokes, manifold heat controls, and cleans the PVC valve and all carburetor linkage. Removes gum, varnish and dirt instantly. Aerosol can.

Replaces lead protection, contains valve seat anti-wear additive, intended for off-road use. 1 bottle treats up to 20 gallons. In a plastic bottle.

Powerful solvents, removes dirt, varnish, gum and sludge, cleans the carburetor and combustion chamber of gasoline engines, NOT FOR SALE IN CALIFORNIA. Aerosol can.

Powerful blend of low VOC solvents, removes dirt, varnish, gum and sludge, cleans the carburetor and combustion chamber of gasoline engines, 50-state compliant. Aerosol can.

Designed for high mileage vehicles. Helps clean fuel injectors, intake valves and prevent future deposit buildup. Use every 3,000 miles. Treats up to 21 gallons.

Restores engine performance. Contains additives that remove water and fight rust. Reduces emissions, knock, ping and hesitation. Cleans injectors, intake valve, and combustion chamber deposits. Removes deposits which tend to cause engine octane requirements to rise. After use of product, many engines will accept regular unleaded gasoline without knocking, pinging and after-run. In a plastic bottle.

Helps clean fuel injectors, prevent future deposit build up and improve fuel economy and acceleration. Treats 21 gallons of fuel.

Helps stop knocks and pings, boost octane rating. Use with up to 15 gallons of gasoline every fill up.

Blend of additives prevents fuel from deteriorating. Stops the formation of varnish and prevents corrosion. Use in any vehicle or power equipment used infrequently or stored for more than 60 days. Also treats fuel in gas cans or storage tanks, and ensures quick, easy starts in all 2- and 4-cycle engines. Use in gas, gas/oil mixes, oxygenated fuel and reformulated gas. 1 oz. keeps 2-1/2 gallons fresh for 12 months, 10 oz. treats 25 gallons, 16 oz. treats 40 gallons and 32 oz. treats 80 gallons.

Cleans the inside and outside of carburetor right down to the bright bare metal. Frees sticking automatic chokes, manifold heat controls, and cleans the PVC valve and all carburetor linkage. Removes gum, varnish and dirt instantly. Aerosol can.

For use in cars, trucks and small engines. Prevents corrosion, helps remove water from fuel. Cleans fuel injectors, carburetors and intake valves for better overall performance. Use at every fill up.

Helps clean and protect the entire fuel system from performance loss with just one treatment. Contains the highest level of detergents of any STP formula. Helps clean fuel injectors, carburetors, intake valves and ports, combustion chambers, cylinder heads and piston tops. It contains jet fuel, a high-quality carrier of active ingredients. Helps to restore lost power and acceleration, reduce hard starts and engine hesitation and stop knock and ping. Treats up to 21 gallons. Use twice a year.

Improves 2-cycle and 4-cycle engine performance instantly. Removes carbon, gum and varnish deposits that cause engine failure. Aerosol can.

For use on engines that are not used regularly. Snow-blowers, mowers, chainsaws, trimmers, etc. Removes oil, varnish, gum and resin. Cleans PVC valves and linkage controls. Aerosol can.

Cures and prevents ethanol fuel problems. Improves fuel economy, reduces emissions and cleans entire fuel delivery system from tank to injectors and combustion chambers. Removes carbon deposits and helps prevent future deposits. Stabilizes gasoline for up to two years. 1 oz. treats 6 gallons of fuel, bottle treats up to 48 gallons of gasoline.

For ethanol based fuels. This applies to E-10, E-15, E-85, pure ethanol and any mixtures in between including gasoline. Completely soluble in all ethanol fuels and will not harm filters. Contains effective additives to prevent rust and corrosion associated with the use of ethanol fuels. Cleans injectors, valve seats, combustion chambers and other critical fuel components. Stabilizes fuel and prevents varnish and gum formation in ethanol and gasoline. One ounce treats five gallons of ethanol fuel.

Spray formula coats all interior engine surfaces with a polymer coating that prevents corrosion during winter storage. Protects internal surfaces for over one year, will not foul plugs/injectors.

Performance-tested to meet requirements of professional truck drivers. Works in both heavy-duty and passenger car diesels. Provides better performance, improves fuel economy. Reduces emissions and fuel line and filter icing by dispersing water. Cetane improver increases cetane with most fuels for easier starting in cold weather. Stabilizes fuel to prevent oxidation and corrosion. Enhanced lubricity protects against pump and injector wear. 1 quart treats 125 gallons.

Helps maintain engine performance by preventing deposit build-up in diesel engines. Saves fuel by keeping injectors clean. Prevents rust and corrosion, fights fuel line freeze and wax formation. Contains no alcohol. May be used in combination with other STP fuel additives.

Blend of additives prevents fuel from deteriorating. Stops the formation of varnish and prevents corrosion. Use in any vehicle or power equipment used infrequently or stored for more than 60 days. Also treats fuel in gas cans or storage tanks, and ensures quick, easy starts in all 2- and 4-cycle engines. Use in gas, gas/oil mixes, oxygenated fuel and reformulated gas. 1 oz. keeps 2-1/2 gallons fresh for 12 months, 10 oz. treats 25 gallons, 16 oz. treats 40 gallons and 32 oz. treats 80 gallons.