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Motor Oils

AMSOIL, the Proven Leader in Motor Oils

AMSOIL Beats Mobil 1

Tests prove that AMSOIL provides superior protection than Mobil 1.

AMSOIL provides a wide variety of high quality synthetic motor oils tailored to fit the needs of your automobile, SUV, performance vehicle, motorcycle or 4-stroke engine.

When the first can of AMSOIL 10W-40 appeared on the market in 1972, it signaled the birth of an entire industry. AMSOIL synthetic lubricants have expanded the boundries of lubrication science and redifined the performance possibilities of modern machinery and engines.

AMSOIL will save you money and give you the peace of mind that comes from using the best. Today's engines produce more power from a smaller plant with a smaller radiator and a smaller volume of oil to cool and lubricate them. They need more protection from heat than conventional oils give them. Conventional oils keep engines from failing most of the time, but there's a big difference between marginal failure prevention and the total wear protection that AMSOIL delivers!

AMSOIL Series 2000 Motor Oils
Special synthetic base stocks blends and advanced additive packages found only in AMSOIL Series 2000 synthetic motor oils provide up to four times the wear protection of other motor oils. AMSOIL Series 2000 synthetic motor oils reduce friction for quicker engine response, increased horsepower and improved fuel efficiency.

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Series 2000 0W-30 Wear Scar

Series 2000 20W-50 Wear Scar

25,000 Mile Motor Oils
AMSOIL 100% Synthetic Motor Oils are engineered to outperform all competitive conventional and synthetic gasoline engine motor oils and exceeds the higher performance demands of modern engines. They reduce heat, friction and wear for maximum power, performance and fuel efficiency. Clean engine formula resists high temperature break down that forms sludge and varnish. Provides low temperature fluidity for fast, dependable winter starts and immediate start-up protection. Exceeds the most demanding world-wide performance standards and meets warranty requirements for all domestic and imported passenger car engines, both turbo-charged and non-turbo-charged. Combined with our EA Oil Filters, AMSOIL Synthetic Motor Oils provide up to 25,000-miles or 1-year drain intervals and have been doing so for over 30 years.

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AMSOIL XL 7500 Motor Oils
AMSOIL XL 7500 Motor Oils are made to deliver 7,500 miles or six months of service between oil changes. These oils provide outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.

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Motorcycle Oils
Motorcycle manufacturers want the best protection possible for their equipment, calling for rugged oils that exhibit high temperature deposit control additives. AMSOIL Synthetic Motor Oils are specially formulated with the best synthetic basestocks and high performance additives to provide tough lubricating protection for all four-cycle motorcyle and ATV engines in the most demanding operations.

AMSOIL Synthetic Motor Oils are formulated for both water-cooled engines and the unique demands presented by air-cooled V-twin motorcycle engines, including Harley-Davidson. Conventional petroleum oils break down and oxidize when faced with high temperatures, such as those experienced when idling in traffic, contributing to the formation of deposits, sludge and varnish. AMSOIL withstands oil breakdown and oxidation in high temperatures, holds contaminants in suspension and keeps engines running cool and clean.

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4-Stroke Motor Oil
AMSOIL Formula 4-Stroke Synthetic Motor Oil provides second-to-none protection and performance in Yamaha, Suzuki, Honda, Mercury, Kawasaki, Arctic Cat, Polaris, Nissan and Bombardier motors and transmissions specifying 0W-40, 5W-30, 10W-30 and 10W-40 viscosity grades. AMSOIL Formula 4-Stroke Synthetic Motor Oil is also safe for use in wet or dry sumps and is recommended for manual or automatic clutches and with clutch plates.

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AMSOIL Engine Fogging Oil
Two- and four-stroke recreational vehicles, hand held power equipment, small engines, construction and farm equipment are commonly operated seasonally or infrequently, then stored for long periods of time. During these periods of inactivity, and as a result of fluctuations in ambient temperatures, water vapor can form condensate within the engine. When this condensate comes into direct contact with steel and iron components, it forms surface corrosion on cylinder liners, piston rings, anti-friction bearings and steel/iron contact surfaces on rotational seals. Long periods of storage can also dry out cylinders, often resulting in permanent damage when the equipment is taken out of storage and dry started.

New AMSOIL Engine Fogging Oil offers superior film retention, providing long-term protection against corrosion and dry starts, extending engine life and reducing operating expenses. Its aerosol spray formulation offers easy and clean applications, while reaching more components and offering better distribution than straight motor oil.

AMSOIL Engine Fogging Oil applications include, but are not limited to, motorcycles, snowmobiles, ATV’s, outboard motors, stern drive and inboard marine engines, personal watercraft, lawn equipment, chainsaws, snow-blowers, portable generators, hand held power equipment, motor scooters, powered farm equipment, powered construction equipment, cars and trucks.

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Signature Series 0W-30 Motor Oil
AMSOIL Signature Series 0W-30 Synthetic Motor Oil is the industry benchmark in lubrication technology. Engineered with the world’s finest synthetic base oils and high performance additives, AMSOIL Signature Series 0W-30 is designed for those who demand the absolute best in motor oil performance. The exclusive “extended drain” formulation delivers superior engine protection and maximum fuel economy. AMSOIL Signature Series 0W-30 is a premium grade synthetic motor oil that exceeds the requirements of modern, high-performance engines and older engines. It replaces other 0W-30, 5W-30 and 10W-30 motor oils and consistently outperforms competitive conventional and synthetic motor oils.
Product Code: SSO

Series 2000 20W-50 Racing Oil
The number one choice for racers of all types of vehicles. Special synthetic base stock blend and advanced additive package provides up to four times the wear protection of other motor oils. Reduces friction for quicker engine response and increased horsepower.
Product Code: TRO

SAE 0W-20 Motor Oil
AMSOIL INC. of Superior, Wisconsin, has introduced a new energy saving, fuel efficient synthetic oil, AMSOIL 100% Synthetic 0W-20 Motor Oil. Several vehicle manufacturers, including Ford, Honda, Daimler-Chrysler and Toyota, recommend either a 0W-20 or 5W-20 motor oil in many of the vehicles they produce, increasing demand for these oils. The new AMSOIL 100% Synthetic 0W-20 Motor Oil provides maximum protection in a light viscosity for up to 25,000 miles or one year, whichever comes first.
Product Code: ASM

SAE 5W-30 Motor Oil
AMSOIL 100% 5W-30 Motor Oil is designed to provide maximum benefits in gasoline-fueled engines. Exceeds the most demanding world-wide performance standards and meet warranty requirements for all domestic and imported passenger car engines, both turbo-charged and non-turbo-charged. Up to 25,000-mile or 1-year drain intervals.
Product Code: ASL

SAE 10W-30 Motor Oil
AMSOIL 100% Synthetic 10W-30 Motor Oil is designed to provide maximum benefits in gasoline-fueled engines. AMSOIL 10W-30 resists high temperature degradation and flows freely in cold conditions for superior protection against engine wear. AMSOIL 10W-30 also provides maximum power and improved fuel efficiency. Up to 25,000-mile or 1-year drain intervals.
Product Code: ATM

High Performance 10W-40 Motor Oil
AMSOIL High Performance Synthetic 10W-40 Motor Oil is designed to provide maximum benefits in gasoline and diesel engines.
Product Code: AMO

High Performance 20W-50 Motor Oil
AMSOIL High Performance Synthetic 20W-50 Motor Oil is designed to provide maximum benefits in gasoline and diesel engines.
Product Code: ARO

5W-40 European Engine Oil
AMSOIL Synthetic 5W-40 European Engine Oil is specially formulated for the lubrication needs of European gasoline and diesel cars and light trucks. Formulated with advanced AMSOIL polyalphaolefin (PAO) synthetic base stocks, premium additives and a broad 5W-40 viscosity rating. AMSOIL 5W-40 allows motorists to take advantage of the maximum extended drain intervals recommended by European automakers while providing second-to-none protection and performance in the most demanding operating conditions.
Product Code: AFL

SAE 60 Super Heavyweight Racing Oil
AMSOIL SAE 60 Synthetic Super Heavy Weight Racing Oil is designed for high horsepower racing engines, typically supercharged and alcohol-burning or nitro-fueled, and requiring a high viscosity oil to resist the thinning effects of fuel dilution.
Product Code: AHR

XL 5W-20 Motor Oil
AMSOIL Synthetic XL 5W-20 motor oil is specially formulated to deliver 7500 miles or six months of service between oil changes. This oil provides outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.
Product Code: XLM

XL 5W-30 Motor Oil
AMSOIL Synthetic XL 5W-30 motor oil is specially formulated to deliver 7500 miles or six months of service between oil changes. This oil provides outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.
Product Code: XLF

XL 10W-30 Motor Oil
AMSOIL Synthetic XL 10W-30 motor oil is specially formulated to deliver 7500 miles or six months of service between oil changes. This oil provides outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.
Product Code: XLT

XL 10W-40 Motor Oil
AMSOIL Synthetic XL 10W-40 motor oil is specially formulated to deliver 7500 miles or six months of service between oil changes. This oil provides outstanding wear protection and increased power, performance and fuel economy in high and low temperatures.
Product Code: XLO

Hi-Performance 10W-40 Motorcycle Engine Oil
AMSOIL Synthetic High Performance 10W-40 Motorcycle Engine Oil is specially formulated to provide tough lubricating protection in the most demanding operations. It is recommended for use in all four-cycle motorcycle and ATV engines, including those with wet clutch systems requiring API CD, SG-CG or SH-CD oils.
Product Code: MCF

Hi-Performance 20W-50 Motorcycle Engine Oil
AMSOIL Synthetic High Performance 20W-50 Motorcycle Engine Oil is specially formulated to provide tough lubricating protection in the most demanding operations. It is recommended for use in all four-cycle motorcycle and ATV engines, including those with wet clutch systems requiring API CD, SG-CG or SH-CD oils.
Product Code: MCV

Formula 4-Stroke® Power Sports Synthetic Motor Oil
AMSOIL Formula 4-Stroke® Power Sports 0W-40 Synthetic Motor Oil is specially formulated for ATVs, snowmobiles and other power sports applications. Its broad viscosity range and wax-free formulation make it excellent for use in both hot and cold temperature extremes.
Product Code: AFF

Formula 4-Stroke® Marine 10W-30 Motor Oil
AMSOIL Formula 4-Stroke® Marine Synthetic 10W-30 (WCT) Motor Oil is FC-W registered and warranty certified for use in four-stroke outboard motors. It surpasses the FC-W four-stroke outboard motor performance requirements established by the National Marine Manufacturers Association (NMMA) and are recommended for gasoline-fueled four-stroke outboard, inboard, stern drives (inboard/outboards) and personal watercraft motors.
Product Code: WCT

Formula 4-Stroke® 10W-30/SAE 30 Synthetic Small Engine Oil
A commercial grade formulation designed for hot temperature, severe service operation of small engines where routine maintenance is often difficult or infrequent. Recommended for use wherever SAE 10W-30 or SAE 30 oil is specified in gasoline or diesel engines, transmissions, hydraulics, and chain cases requiring the listed specifications. Applications include maintenance equipment, tractors, lawn and garden equipment, generators, compactors, pumps, light towers, welders, log splitters, power washers, cement mixers and trowels, skid-steers, excavators and compressors.
Product Code: ASE

Formula 4-Stroke® 10W-40 Synthetic Scooter Oil
AMSOIL Formula 4-Stroke� 10W-40 Synthetic Scooter Oil (ASO) is formulated specifically to meet the special needs of today’s high-tech air- and water- cooled fourstroke motorized scooters, offering unsurpassed wear protection and friction reduction for longer equipment life and cooler operating temperatures. Its exceptional shear stability ensures consistent viscosity protection and provides additional protection for transmissions and gear boxes, while its friction modifier-free formulation ensures wet clutch compatibility and smooth clutch operation. A special anti-corrosion additive package provides long-term protection during periods of inactivity and storage.
Product Code: ASO

Formula 4-Stroke® Marine 10W-40 Motor Oil
AMSOIL 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil (WCF) is a premium quality synthetic formulation engineered for the harsh operating conditions of marine environments. It withstands the intense mechanical action of continuous, high RPM operation to deliver superior viscosity protection. Formula 4-Stroke® Marine Synthetic Motor Oil is specially fortified with a heavy treatment of advanced additives that protects motors against wear, rust and deposits. It excels in both high horsepower applications and all-day trolling conditions.
Product Code: WCF

AMSOIL Engine Fogging Oil
Offers superior film retention, providing long-term protection against corrosion and dry starts, extending engine life and reducing operating expenses. Its aerosol spray formulation offers easy and clean applications, while reaching more components and offering better distribution than straight motor oil.
Product Code: WCF