Become a
Prefered Customer

Save up to 25% on all purchases!
Find Out More

Contact Us

Toll Free:
1-866-237-4081

Or send us a quick message.

Synthetic Motor Oil
First to develope an API-rated 100 percent synthetic motor oil.

list

AMSOIL Synthetic Engine Oils


Quart of AMSOIL 0W-20 Synthetic Motor Oil

AMSOIL Synthetic 0W-20 Motor Oil
Product Code: ASM

 

Engineered to outperform all conventional gasoline engine motor oils. Reduces heat, friction, and wear for maximum performance and fuel efficiency. Clean engine formula resists high-temp breakdown that forms sludge and varnish. Lasts longer and offers better protection.

More Information


Quart of AMSOIL Synthetic 0W-30 Motor Oils

AMSOIL 0W-30 Synthetic Gasoline Motor Oils
Product Code: SSO

 

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.

More Information


Quart of AMSOIL 4 Stroke 0W-40 Synthetic Motor Oils

AMSOIL Formula 4-Stroke 0W-40 Synthetic Motor Oil
Product Code: AFF

 

Specially formulated for four-stroke recreational motors, including ATVs, outboard motors and motorcycles. It may also be used in cars and trucks. Its broad viscosity range makes it excellent for use in both hot and cold temperature extremes.

More Information


Quart of AMSOIL XL 5W-20 Synthetic Motor Oils

AMSOIL XL-7500 5W-20 Synthetic Motor Oil
Product Code: XLM

 

Specially formulated to provide outstanding wear protection, power, fuel economy and performance for 7,500 miles or six months of service. With AMSOIL XL-7500 Synthetic Motor Oils, motorists driving 15,000 miles a year need only change their oil twice annually. AMSOIL XL-7500 Synthetic Motor Oils offer a high degree of convenience and savings through their ability to perform and protect engines for extended periods.

More Information


AMSOIL synthetic 5W-30 motor oils

AMSOIL SAE 5W-30 Synthetic Motor Oils
Product Code: ASL

 

Exceeds the lubrication requirements of all modern automobile engines, providing tough lubricating protection in the most demanding operating conditions. It resists high temperature degradation and flows freely in cold conditions for substantial reduction in engine wear. AMSOIL 5W-30 provides excellent engine protection, maximum power, improved fuel efficiency and extended oil drain intervals.

More Information


AMSOIL XL 5W-30 Synthetic Motor Oils

AMSOIL XL-7500 5W-30 Synthetic Motor Oil
Product Code: XLF

 

Specially formulated to provide outstanding wear protection, power, fuel economy and performance for 7,500 miles or six months of service. With AMSOIL XL-7500 Synthetic Motor Oils, motorists driving 15,000 miles a year need only change their oil twice annually. AMSOIL XL-7500 Synthetic Motor Oils offer a high degree of convenience and savings through their ability to perform and protect engines for extended periods.

More Information


Quart of AMSOIL European Car Synthetic 5W-40 Motor Oils

AMSOIL Synthetic 5W-40 European Engine Oil
Product Code: AFL

 

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.

More Information


Quart of AMSOIL synthetic 10W-30 motor oils

AMSOIL Synthetic 10W-30 Motor Oils
Product Code: ATM

 

Exceeds the lubrication requirements of all modern automobile engines. It provides tough lubricating protection in the most demanding operating conditions. 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.

More Information


Quart of AMSOIL XL 10W-30 Synthetic Motor Oils

AMSOIL XL-7500 10W-30 Synthetic Motor Oil
Product Code: XLT

 

Specially formulated to provide outstanding wear protection, power, fuel economy and performance for 7,500 miles or six months of service. With AMSOIL XL-7500 Synthetic Motor Oils, motorists driving 15,000 miles a year need only change their oil twice annually. AMSOIL XL-7500 Synthetic Motor Oils offer a high degree of convenience and savings through their ability to perform and protect engines for extended periods.

More Information


Picture of a quart of AMSOIL 10W-30 Synthetic Motorcycle Oil

AMSOIL 10W-30 Advanced Synthetic Motorcycle Oil
Product Code: MCT

 

Superior synthetic formulation provides long service life and maximum protection against engine wear. Superior shear stability provides unsurpassed protection for high performance engines and transmissions. No friction modifiers. Wet clutch compatible.

More Information


Quart of AMSOIL Marine Four Stroke 10W-30 Motor Oils

AMSOIL 10W-30 Formula 4-Stroke® Marine Synthetic Motor Oil
Product Code: WCT

 

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.

More Information


Quart of AMSOIL Four Stroke 10W-30 Small Engine Synthetic Motor Oils

AMSOIL Formula 4-Stroke® 10W-30 Small Engine Oil
Product Code: ASE

 

A robust formulation designed for hot temperature, severe service operation of small engines where routine maintenance is often difficult or infrequent. It is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements. Unlike conventional SAE 30 motor oils, AMSOIL ASE has a naturally high viscosity index and does not contain paraffin (wax). It has a -38°F pour point and qualifies for SAE 10W, making it an “all season,” multigrade lubricant with a wide operating temperature range. As an SAE 30 weight motor oil, AMSOIL ASE provides outstanding protection for hot operating engines.

More Information


Quart of AMSOIL SAE 10W-40 Synthetic Motor Oils

AMSOIL High Performance Synthetic 10W-40 Motor Oil
Product Code: AMO

 

Provides superior protection and performance in the most severe automotive driving conditions. AMSOIL High Performance Synthetic 10W-40 Motor Oil provides a wide range of protection in all four-cycle gasoline and diesel engines, including pickups, RVs, cars and off-highway vehicles. It is recommended for use in vehicles subject to stop-and-go driving, short trips, high temperatures, frequent trailer pulling and off-road use.

More Information


Quart of AMSOIL XL 10W-40 Synthetic Motor Oils

AMSOIL XL-7500 10W-40 Synthetic Motor Oil
Product Code: XL0

 

Specially formulated to provide outstanding wear protection, power, fuel economy and performance for 7,500 miles or six months of service. With AMSOIL XL-7500 Synthetic Motor Oils, motorists driving 15,000 miles a year need only change their oil twice annually. AMSOIL XL-7500 Synthetic Motor Oils offer a high degree of convenience and savings through their ability to perform and protect engines for extended periods.

More Information


Quart of AMSOIL 10W-40 Synthetic Motorcycle Motor Oils for your bikes

AMSOIL SAE 10W-40 Synthetic Motorcycle Oil
Product Code: MCF

 

AMSOIL Synthetic Motorcycle Oils have been reformulated with new high performance additive technology that provides even greater multi-functional benefits for the special requirements of motorcycle applications. These independent and exclusive new AMSOIL formulations provide second-to-none viscosity protection for hot-running American and foreign motorcycle engines, transmissions and primary chaincases. Performance specifications include: API SG, SL/CF; JASO MA; API;GL-1

More Information


Quart of AMSOIL SAE10W-40 4-Stroke Synthetic Scooter Oil

AMSOIL 4-Stroke 10W-40 Synthetic Scooter Oil
Product Code: ASO

 

Meets the needs of today's high-tech air- and water-cooled four-stroke motorized scooters. Unsurpassed wear protection and friction reduction for longer equipment life. Protects transmissions and gear boxes. Wet-clutch compatible to insure smooth clutch operation. Provides long-term protection during storage.

More Information


Quart of AMSOIL Four Stroke 10W-40 Marine Synthetic Motor Oils

AMSOIL 10W-40 Formula 4-Stroke® Marine Synthetic Motor Oil
Product Code: WCF

 

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.

More Information


Bucket of AMSOIL SAE (20W)-40 Synthetic Natural Gas Engine Oil

AMSOIL SAE (20W)-40 Synthetic Natural Gas Engine Oil
Product Code: ANG

 

AMSOIL Synthetic Natural Gas Engine Oil (ANG) was developed to deliver unsurpassed performance in natural gas engines calling for an SAE 40, low-ash (<.50%) lubricant.

More Information


Quart of AMSOIL Synthetic 20W-50 Motor Oils

AMSOIL Synthetic 20W-50 Premium Protection Motor Oil
Product Code: ARO

 

Specially formulated to provide superior protection and performance in a wide variety of demanding applications. By incorporating high quality synthetic base stocks and additives, AMSOIL Premium Protection Oil exceeds the needs of large and small gasoline or diesel engines in cars, motorcycles, trucks, motor homes, maintenance equipment, heavy equipment, street rods and marine applications. AMSOIL Premium Protection Oil resists oxidation, neutralizes acids, inhibits corrosion, reduces wear and protects against deposits. It is ideal for high mileage vehicles and high-stress vehicles subject to hot temperatures, heavy hauling, trailer pulling or off road use.

More Information


Quart of AMSOIL 20W-50 Synthetic Motorcycle Motor Oils for Victory Motorcycles

AMSOIL SAE 20W-50 Synthetic Motorcycle Oils
Product Code: MCV

 

AMSOIL Synthetic Motorcycle Oils have been reformulated with new high performance additive technology that provides even greater multi-functional benefits for the special requirements of motorcycle applications. These independent and exclusive new AMSOIL formulations provide second-to-none viscosity protection for hot-running American and foreign motorcycle engines, transmissions and primary chaincases. Performance specifications include: API SG, SL/CF; JASO MA; API GL-1

More Information


Quart of AMSOIL SAE 60 Super Heavy Weight Synthetic Racing Oils

AMSOIL SAE 60 Synthetic Super Heavy Weight Racing Oil
Product Code: AHR

 

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. Formulated specifically for wear protection and friction reduction in the extreme service conditions of racing. It has been proven on-track to bring down high engine oil sump temperatures by 20 degrees F, which speaks directly to its ability to reduce friction, promote power and inhibit wear.

More Information

 

AMSOIL INC. motor oils dramatically outperform conventional petroleum motor oil. Up to 35,000-mile or 1-year drain intervals

Why Amsoil synthetic motor oils are better than conventional motor oils

•Amsoil synthetics offer superior wear protection so that engines last longer

•Amsoil synthetics improve fuel economy so that vehicles get better mileage out of every tank of gas

•Because of Amsoil synthetics low pour points and cold weather pumpability, they make winter starts much easier

•By reducing friction Amsoil Synthetics help engines run cooler

•By reducing deposits engines run cleaner and perform more efficiently with Amsoil Synthetics

•Because of lower volatility Amsoil Synthetics reduce oil consumption.

•Amsoil Synthetics have been proven to provide more horsepower.

•Because Amsoil Synthetics resist oxidation and breakdown, they reduce varnish and sludge which keeps valves and rings from sticking.

•Amsoil Synthetics reduce waste. Not only is there less waste oil to deal with, there are also fewer empty containers for disposal.

 

Whether you drive a car, truck, motorcycle or boat, diesel or gas engine, chevy, ford or dodge, AMSOIL has the engine oil for your application.  AMSOIL synthetic motor oils last longer and protect better to reduce your maintenance costs and improve your care care.  

What makes AMSOIL synthetic motor oils so good?  The molecular uniformity and purity of synthetic oils allows them to protect and lubricate engines better and more efficiently in all operating conditions than conventional engine oils do.  Synthetics lubricate and protect quickly in cold temperatures, maintain a dependable lubricating film in normal operating temperatures and shield engine parts from damage and wear during high stress, high temperature operations.  AMSOIL synthetic motor oils exceed the most demanding world-wide performance standards and meet warranty requirements for all domestic and imported motor vehicle engines.

AMSOIL High Performance synthetic motor oils are specially formulated to operate in high temperature/high stress engines, such as those in sport utility vehicles, motor homes, pickup trucks and diesel-powered passenger vehicles.

AMSOIL synthetic motor oils provide maximum TBN and dispersant protection to control acid and soot in diesel engines.  They also provide high levels of key anti wear chemistries and have outstanding ability to maintain a dependable lubricating film of protection in stressful operating conditions - like those experienced by sport utility vehicles, motor homes and pickup trucks.

AMSOIL Synthetic Diesel Oils

You can't buy better protection for your hard-working diesel truck than AMSOIL synthetic motor oil.  Whether you want the fuel economy benefits and ultra-cold temperature protection of a diesel-formulated 5W-30 or the tried-and-true protection of a 15W-40, you just can't beat AMSOIL synthetic motor oils.

AMSOIL Synthetic Motorcycle Motor Oils

Motorcycle riders look no further!  AMSOIL has the motorcycle oil to give your motorcycle the best protection!  Harley-Davidson owners need AMSOIL protection for their hot running engines.  But whether you ride a Harley, Honda, Yamaha, Suzuki or even a moped or scooter.  AMSOIL synthetic motor oils will give your bike the best protection.  

AMSOIL synthetic motorcycle oils are recommended for all V-Twin and other motorcycle engines requiring an API CD, SG-CG or SH-CD oil.  Superior 12+ TBN synthetic formulation provides long service life and maximum protection against engine wear.  Run cooler - reduce crankcase temperature.  Superior anti-wear and detergent/dispersant packages.  No friction modifiers.  Wet clutch compatible.

Harley Davidson owners, AMSOIL does not void your warranty and you are not required to use Harley Davidson Screamin Eage motorcycle oil.  See the Magnison-Moss act of 1974 which states the owner of a vehicle does not void their warranty by using a certain type oil or extending the drain intervals.  Google this to get the specifics. I paraphrased a little.

If you want the best car care, best protection, and reduced maintenance then AMSOIL has the product for you.  AMSOIL motor oils work great in Ford, Chevy and Dodge cars and trucks.  Diesel or gasoline engines, AMSOIL has the best engine oil designed specifically for your application.

Warranties and AMSOIL

  Virtually all automobile manufacturers warrant their vehicles to remain free of defect in manufacture or workmanship for a certain mileage or time period.  Whether an automaker will honor a warranty claim depends on the vehicle owner providing proper maintenance for the vehicle.  For this reason, it is important for vehicle owners to maintain maintenance records.  Proper maintenance includes installing appropriate oil and filters.

  Automakers cannot deny warranty claims solely on the basis of using synthetic motor oil, and they cannot specify a certain brand to be used in their vehicles.  Instead, they require the oil meets the appropriate API performance classification and SAE viscosity grade specified in the owner's manual.

"Installation or the use of special materials does not, in and of itself, void the New Vehicle Limited Warranties."
Service and Parts Operations,
Chrysler Corporation

  Many high performance vehicles are factory filled with synthetic motor oils and the manufactures encourage continued use of synthetic motor oils in order to achieve maximum performance.  Including Cadillac, Chevy Corvette and Dodge Viper.  Many other automobile manufacturers neither recommend or discourage the use of synthetic motor oils, requiring only that the oil meets a certain viscosity grade and performance classification.

  Automakers may not void warranties based solely on an owner's practice of extending oil drain intervals.  Dealership personnel and district managers may be unaware of the serviceability of synthetic oils over an extended period, but they may not summarily dismiss a warranty claim based on the owner's practice of changing oil at extended intervals.  To do so does not disprove a defect in manufacture or workmanship as the immediate cause of failure.  Vehicle owners may appeal to a factory representative if the dealership and district manager do not satisfactorily settle the warranty claim.  Factory representatives appreciate the value of used oil analysis and do consider preventive maintenance oil analysis reports in their evaluations of warranty claims, while post-failure oil analysis is critically important to the disposition of a warranty claim.  Their findings pull more weight than the opinions of dealerships or district managers.

"If engine damage otherwise covered by warranty was found to be unrelated to the engine lubricant, then the consumer's practice with regard to oil change intervals would not be a relevant consideration, and the warranty claim would be honored."

Fuels and Lubricants Division,
General Motors Research Laboratories

  If used engine oil is decarded without an independent analysis, the dealership and vehicle manufacturer lose their evidence to support a claim that the oil, and not a mechanical problem, caused the failure.  For example, sludge may be formed through several avenues, not all related to the oil's performance.  Antifreeze contamination or nitration due to poor electronic sensor performance may cause sludge, and both may be directly related to a defect in vehicle manufacture or workmanship, but clearly neither may be blamed on the oil.

"The New Vehicle Warranty would not be void simply because an owner failed to use proper engine oils or did not perform maintenance at the prescribed intervals.  Warranty applicability is contingent upon the cause of failure."

Service Policies and Procedures Department,
General Motors Corporation

Vehicle manufacturers base their owner's manual maintenance recommendations on their own research and to best protect their equipment based upon lubricants of varying quality, reliability and value in the marketplace.   A move toward extended drain intervals is in progress now.   Ford recently extended its recommended drain interval to 7,500 miles in normal service conditions.  While GM has been recommending increased intervals when indicated by its oil monitoring system.

  AMSOIL offers superior synthetic motor oils fully capable of providing extended drain service.  AMSOIL is committed to backing its products, as well as protecting the interests of its customers.  Therefore, AMSOIL INC. offers its customers a warranty.

"AMSOIL INC. warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with the company's recommendations and instructions."

  AMSOIL synthetic motor oils are formulated to surpass engine test specifications, offering protection far greater than competing motor oils for extended drain intervals.  Most synthetic oil manufacturers make no claim to extend drain intervals, deferring to the maintenance schedule provided by the vehicle manufacturer.  With its unparalleled oil and warranty program, AMSOIL offers consumers unprecedented protection and economics.

• Any lubricant meeting viscosity and performance specifications may be used.
Vehicle manufacturers describe lubricants by their viscosity grade and service classification, which are defined by the Tripartite Committee, composed of the American Petroleum Institute, the Society of Automotive Engineers and the American Society for Testing and Materials.  All AMSOIL synthetic motor oils state their SAE viscosity grade and the API performance classification on the product container, and all are recommended for the highest performance classification for their application.
  If personnel at a vehicle dealership claim that a vehicle warranty is void simply by using AMSOIL synthetic motor oil, obtain this statement in writing and send a copy to AMSOIL INC.  AMSOIL INC. will follow up with the dealership.

 The vehicle manufacturer may not specify by brand name the products you may use in your vehicle.
The Magnuson-Moss Act is a federal law which states that a manufacturer may not require the use of a specific brand of aftermarket product, including lubricants, unless that part is provided by the manufacturer free of charge.  To do otherwise constitutes an infringement upon free trade.
If any representative of the vehicle dealership or manufacturer informs you that you must use a specific brand of lubricant or filter, obtain a written statement to that effect and send a copy to AMSOIL INC.  AMSOIL INC. will follow up.

•  Cause of failure is paramount to warranty claim payment
Vehicle manufactures warrant their products to be free of defect in manufacture or workmanship.  In order to avoid paying a warranty claim, a vehicle manufacture must show a failure that is not due to a defect in the manufacture or workmanship of the vehicle.  The manufacturer may not arbitrarily blame a failure on the consumer's practice of changing oil at extended intervals.

Verbal notification of refusal to honor a claim is insufficient
The refusal must be in writing and must state the specific reason a claim has been refused.  If you still think a failure is due to a defect in vehicle manufacture or workmanship, contact the dealership, district manager, manufacturer or arbitrator.

The AMSOIL warranty assumes protection where the vehicle warranty stops.
AMSOIL offers complete protection to its customers through the finest line of lubricants and filters available and through the unique AMSOIL warranty.   Customer following AMSOIL recommendations are protected by the AMSOIL warranty if they experience a failure caused by an AMSOIL product and the vehicle manufacturer won't honor its warranty.

Customers are covered
As long as customers maintain their vehicles properly and follow either the vehicle manufacturer recommendations or AMSOIL recommendations, their vehicles are warranted against failure by either the vehicle manufacturer or AMSOIL INC.  AMSOIL has had minimal warranty issues and virtually no issues with dealerships.