Fuel Additives

Quickshot SE
Degraded fuel presents a major maintenance issue in small engines and powersports equipment. It can form varnish, gum and insoluble debris that clog carburetors, fuel injectors and fuel filters. Carbon buildup can form on the tops of pistons that leads to pre-ignition, rough idling and poor throttle response. Fuel-related problems are only expected to intensify in the coming years as the ethanol content in pump gasoline continues to increase.

AMSOIL Quickshot SE (AQS) is a premium fuel additive formulated to thoroughly clean and restore peak performance in small engine and powersports equipment fuel systems. It also stabilizes fuel between uses and during short-term storage periods. Its revolutionary technology focuses on three major fuel-related issues plaguing small engines and powersports equipment: ethanol, water and dirty pump gas.

Quickshot SE - More Information.

P.i. Performance Improver Gasoline Additive
Improves fuel mileage an average of 2.3% and up to 5.7%. Reduces emissions such as hydrocarbons (HC) up to 15%, carbon monoxide (CO) up to 26% and nitrous oxides (NOx) up to 17%. Restores power and performance. Reduces the need for costly higher octane fuel. Reduces noise from carbon rap and pre-ignition. Offers better vehicle drivability and smoother operation.

P.i. Performance Improver Concentrate (API) - More Information.

Diesel Recovery Emergency Fuel Treatment
AMSOIL Diesel Recovery quickly dissolves gelled fuel, thaws frozen fuel filters and reduces the need for a new filter, saving both money and an inconvenient trip to a parts store. Performs well in all diesel fuels, including ULSD, off-road and biodiesel. Cheap insurance against frozen fuel.

Diesel Recovery Emergency Fuel Treatment (DRC) - More Information.

Diesel Concentrate Plus Cold Flow Improver
AMSOIL Diesel Concentrate Plus Cold Flow Improver is formulated with excellent detergency properties to help keep injectors, rings, piston crowns and the fuel pump lubricated, plus lowers the cold flow filter plugging point (CFPP) by as much as 34 F (19 C) in ultra-low sulfur diesel.


Diesel Concentrate Plus Cold Flow Improver (DFC) - More Information.

Diesel Fuel Additive Concentrate
A total system cleaner and lubricity improver for all types of diesel engines. Improves the performance, fuel efficiency and longevity of diesel engines while reducing deposits, black smoke and emissions. Improves fuel economy by cleaning dirty injectors and restores horsepower. Designed for use in heavy-duty diesel engines.

Diesel Concentrate Performance Fuel Additive (ADF) - More Information.

Cold Flow Improver
AMSOIL Cold Flow Improver (ACF) is formulated with an advanced deicer to enhance fuel flow and help prevent fuel filter plugging in cold temperatures. It is formulated for a broad range of diesel fuels, including #1 diesel, #2 diesel, biodiesel and ultra-low-sulfur diesel (ULSD).

Reduces Need for #1 Diesel Fuel
One traditional solution to cold weather problems in diesel fuel is using #1 diesel fuel, which is diluted with kerosene. While #1 diesel fuel has an advantage in low-temperature operability, it has several disadvantages. The energy content of #1 diesel fuel is about 95 percent that of #2 diesel fuel, resulting in reduced fuel economy and less horsepower. In addition, the kerosene used in #1 diesel fuel provides less lubrication for the fuel pump and fuel distributor, increasing the likelihood for wear on these critical components. AMSOIL Cold Flow Improver minimizes the need for blending standard #2 diesel fuel with lower-quality #1 diesel fuel, helping to maintain fuel economy and keep engines functioning normally.


Diesel Cold Flow Improver (ACF) - More Information.

Gasoline Stabilizer
Reduces the oxidation process that occurs when fuel is stored for extended periods to prevent the formation of varnish and sludge which can clog injectors, stick floats and cause poor engine performance. Ideal for stored seasonal equipment such as snowmobiles, lawnmowers, motorcycles and boats. Similar to STA-BIL®


Gasoline Stabilizer (AST) - More Information.

Cetane Boost Diesel Fuel Additive
AMSOIL Cetane Boost Additive improves diesel fuel quality that benefits all diesel engines, especially high performance designs. Supported by extensive testing and years of field trial use, AMSOIL Cetane Boost Additive has repeatedly demonstrated its ability to improve diesel engine performance. High performance diesel engines operate best with cetane values of 50 or higher.

Recommended for use with all types of heavy- and light-duty, on- or off-road and marine diesel engines. Best performance is achieved when used with every new tank of fuel. Excellent for use with Ultra Low Sulfur Diesel fuel (ULSD). Compatible with biodiesel and all types of exhaust emission systems such as diesel particulate filters (DPFs). (Although high concentrations of biodiesel decrease the benefits of AMSOIL Cetane Boost).

Cetane Boost Diesel Fuel Additive (ACB)  - More Information.

Octane Boost
Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines. Increases octane number up to seven points. Reduces engine knock, improves ignition and engine response, helps fuel burn cleaner and inhibits corrosion. Recommended for off-road and racing use.

AMSOIL Series 2000 Octane Boost improves the performance of all two-cycle and four-cycle gasoline-fueled engines. Just one treatment significantly increases engine response and power.

AMSOIL Octane Boost reduces engine knock, improves ignition and helps fuel burn cleaner.

AMSOIL Octane Boost is the recommended octane boost for all high-performance off-road and racing applications.

Most users will find one 12-ounce bottle of AMSOIL Octane Boost for 15 gallons of gasoline provides the ideal performance increase.

AMSOIL Octane Boost is also excellent as a lead substitute at same treat rates in collector automobiles, older off-road equipment and pleasure vehicles.


Series 2000 Octane Boost (AOB) - More Information.