Your engine’s top-end is sparsely lubricated and prone to the development of performance-robbing deposits. It’s also highly susceptible to corrosion, an issue compounded by the prevalence of ethanol in today’s fuel. AMSOIL Upper Cylinder Lubricant is designed to solve those issues. Its AMSOIL-exclusive, powerful formulation helps maximize engine power and performance while increasing engine life. And unlike competing fuel additives, AMSOIL Upper Cylinder Lubricant works.

Newly reformulated, AMSOIL P.i. is the most potent gasoline additive available today. As a concentrated detergent, it is unsurpassed in cleaning combustion chamber deposits, intake valve deposits and port fuel injector deposits. AMSOIL P.i. helps maintain peak engine efficiency, fuel economy, power and drivability. AMSOIL P.i. maximizes fuel efficiency by dissolving and removing fuel system deposits and other contaminants for improved power and overall performance. AMSOIL P.i. also works as an “emissions passer.” It is ideal for use prior to emissions inspections. Treat gas, run that tank and fill up again prior to test. Safe for use with catalytic converters, oxygen sensors, oxygenated gas and 10% ethanol blended gas. Tests results show improved fuel efficiency between 2.3% and 5.7%. One bottle treats 20 gallons of gas. Treat one full tank of gas every 4,000 miles or 100 hours of service to protect peak efficiency. Improves fuel mileage an average of 2.3% and up to 5.7%

The premium fuel additive to thoroughly clean and restore peak performance in small engine and powersports equipment fuel systems. Degraded fuel presents a major maintenance issue in small engines and powersports equipment. AMSOIL Quickshot’s revolutionary technology focuses on three major fuel-related issues plaguing small engines and powersports equipment: ethanol, water and dirty pump gas. They 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 also stabilizes fuel between uses and during short-term storage periods.

Fights fuel deterioration! Gasoline is not formulated for long-term storage and can start to degrade in as little as 60 days, leading to varnish and sludge deposits that clog injectors, fuel lines and carburetors, stick floats and cause poor engine performance, starting problems, increased maintenance expenses and decreased equipment life. AMSOIL Gasoline Stabilizer is suitable for gasoline or diesel fuel, and keeps fuel from deteriorating during storage allowing easier start-ups. It resists the formation of varnish and gum in fuel systems and storage tanks. Ideal for all two- and four-cycle engines, including motorcycles, snowmobiles, boats, ATVs, edgers, tillers, mowers, cars, trucks, snow blowers, chain saws, generators, farm and construction equipment. Mixes 1 oz. to 2.5 gallons of fuel.

Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines. Reduces engine knock, improves ignition and engine response, helps fuel burn cleaner and inhibits corrosion. Recommended for off-road and racing use. Excellent as a lead substitute at same treat rates in collector automobiles, older off-road equipment and pleasure vehicles. Usual treat rate is one 12oz. bottle to 15 gallons of gasoline.

AMSOIL Motorcycle Octane Boost increases octane up to 3 Research Octane Numbers (RON) for power and efficiency. It is designed to improve startup performance and eliminate engine ping and knock for increased power at low-rpm operation. AMSOIL Motorcycle Octane Boost contains detergents that help combustion chambers and fuel delivery systems maintain cleanliness for optimum performance. At the recommended treat rate, it does not harm catalytic converters or oxygen sensors and is compatible with all other AMSOIL fuel additives. One 4 oz. bottle treats 4 to 6 gallons of gasoline.

Diesel Injector Clean + Cetane Boost is specially engineered to defend your engine and fuel system against performance-robbing wear and deposits. Its concentrated formula provides dependable protection in warm weather. One dose delivers outstanding detergency, improved lubricity and higher cetane. It is safe for use in all diesel fuels, including biodiesel.

AMSOIL Diesel All-In-One (ADB) combines the superior detergency and improved lubricity of AMSOIL Diesel Injector Clean, the excellent cold-flow and anti-gelling properties of AMSOIL Diesel Cold Flow and the increased horsepower and cetane of AMSOIL Cetane Boost in one convenient package. It is safe for use in all diesel fuels, including biodiesel.

AMSOIL Diesel Injector Clean removes performance-robbing deposits from diesel fuel injectors to restore horsepower and improve fuel economy. It is formulated for all types of diesel engines, including high-pressure common-rail designs. Diesel Injector Clean is formulated to clean both the tough-to-remove internal diesel injector deposits surfacing in modern high-pressure common-rail diesel engines and traditional carbonaceous deposits. Unlike all-in-one fuel additives that may sacrifice performance in specific areas in the name of convenience, AMSOIL Diesel Injector Clean makes no sacrifices; it is purpose-built for diesel owners who demand maximum results. Ultra-low-sulfur diesel fuel (ULSD) has significantly reduced lubricity – a critical property in controlling wear in fuel pumps and injectors. AMSOIL Diesel Injector Clean adds back the lubricity the fuel pump and injectors need, improving service life and saving time and money on maintenance costs.

AMSOIL Diesel Cetane Boost raises the cetane number of diesel fuel up to seven points for maximum horsepower, increased fuel economy and easier starts in all diesel engines. Diesel engines operate best on fuel with cetane values of 50 or higher. Most diesel fuel sold in North America has a cetane value of 40-45. Unlike all-in-one fuel additives that may sacrifice performance in specific areas in the name of convenience, AMSOIL Diesel Cetane Boost makes no sacrifices; it is purpose-built for diesel owners who demand maximum results. Fuel with a higher cetane number provides for a more complete burn, resulting in improved performance. By increasing cetane, AMSOIL Diesel Cetane Boost improves the ignition quality of diesel fuel, maximizing available power and improving starting. It also smooths idle and reduces smoke and emissions.

Formulated with an advanced deicer to enhance fuel flow and help prevent fuel filter plugging in cold temperatures. AMSOIL Diesel Cold Flow is formulated for a broad range of diesel fuels, including #1 diesel, #2 diesel, biodiesel and ultra-low-sulfur diesel (ULSD). AMSOIL Diesel Cold Flow combats diesel fuel gelling by improving diesel cold-flow ability. Unlike all-in-one fuel additives that may sacrifice performance in specific areas in the name of convenience, AMSOIL Diesel Cold Flow makes no sacrifices; it is purpose-built for diesel owners who demand maximum results. Reduces need for #1 diesel fuel.

“AMSOIL Diesel Injector Clean + Cold Flow combines the superior deposit-removing properties of AMSOIL Diesel Injector Clean and the excellent anti-gelling properties of AMSOIL Diesel Cold Flow in one convenient package. It is designed for all types of diesel engines, including high-pressure common-rail designs. Unlike all-in-one fuel additives that may sacrifice performance in specific areas in the name of convenience, AMSOIL Diesel Injector Clean + Cold Flow makes no sacrifices; it is purpose-built for diesel owners who demand maximum results.
AMSOIL Diesel Injector Clean + Cold Flow is recommended for use with all types of heavy- and light-duty, on- or off-road and marine diesel engines. It also reduces the need for #1 diesel fuel”

AMSOIL Diesel Recovery (DRC) is an emergency diesel fuel treatment that dissolves the wax crystals that form when diesel fuel has surpassed its cloud point. Diesel Recovery liquefies gelled diesel fuel and thaws frozen fuel filters, avoiding costly towing charges and getting diesels back on the road. For preventative maintenance, use Diesel Cold Flow (ADD) or Diesel All-In-One (ADB).