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ABOUT AMSOIL
AMSOIL was the first company to produce synthetic oil for automobiles.

As a jet fighter squadron commander Lieutenant Colonel Albert J. Amatuzio had ample opportunity to witness synthetic lubricants in action. These oils are used exclusively in jet engines because of three extraordinary performance characteristics: an ability to reduce friction and wear on engine components, an ability to function dependably at severe temperature extremes and an ability to withstand rigorous and lengthy engine operation without chemical breakdown.

Recognizing that these same benefits would prove invaluable in combustion engines, Amatuzio began conducting serious research in 1963. By 1966 he had formulated a synthetic motor oil and put it to use in vehicles in northern Minnesota. Throughout the late 1960s Amatuzio continued his research and development and sold commercially available synthetic oils under a variety of names. In 1970 he incorporated his own name into a commercially sold product called AMMOIL. In 1971 this product name was changed to AMZOIL and it continued to be sold commercially. The true milestone came in 1972 when AMZOIL became the first synthetic motor oil in the world to meet American Petroleum Institute criteria. The new lubricant performed like no other before it. When the first can appeared on the market in 1972, it signaled the birth of an entire industry. AMSOIL synthetic lubricants have expanded the boundaries of lubrication science and redefined the performance possibilities of modern machinery and engines.

Watch a video on the history of AMSOIL

AMSOIL has been around for over 30 years.

As a jet fighter squadron commander Lieutenant Colonel Albert J. Amatuzio had ample opportunity to witness synthetic lubricants in action. These oils are used exclusively in jet engines because of three extraordinary performance characteristics: an ability to reduce friction and wear on engine components, an ability to function dependably at severe temperature extremes and an ability to withstand rigorous and lengthy engine operation without chemical breakdown.

Recognizing that these same benefits would prove invaluable in combustion engines, Amatuzio began conducting serious research in 1963. By 1966 he had formulated a synthetic motor oil and put it to use in vehicles in northern Minnesota. Throughout the late 1960s Amatuzio continued his research and development and sold commercially available synthetic oils under a variety of names. In 1970 he incorporated his own name into a commercially sold product called AMMOIL. In 1971 this product name was changed to AMZOIL and it continued to be sold commercially. The true milestone came in 1972 when AMZOIL became the first synthetic motor oil in the world to meet American Petroleum Institute criteria. The new lubricant performed like no other before it. When the first can appeared on the market in 1972, it signaled the birth of an entire industry. AMSOIL synthetic lubricants have expanded the boundaries of lubrication science and redefined the performance possibilities of modern machinery and engines.

Watch a video on the history of AMSOIL

AMSOIL has a documented history of innovation and leadership.
  • First to develop an API-rated 100 percent synthetic motor oil.
  • First to introduce the concept of "extended drain intervals" with a recommended 25,000-mile/1-year drain interval.
  • First U.S. company to utilize the NOACK volatility test as a standard of performance excellence.
  • First to produce synthetic motor oils for diesel engines, racing engines, turbo and marine engines.
  • First to introduce synthetic oils that legitimately contribute to improving fuel efficiency.
  • First to manufacture synthetic gear lube for automotive use.
  • First to manufacture a 100:1 pre-mix synthetic 2-cycle oil.
  • First to manufacture a synthetic automatic transmission fluid for automotive use.
See Product Introduction Chronology
AMSOIL SAVES YOU MONEY!
The oil seems expensive, how does this save money?
Answer: AMSOIL extended drain intervals means fewer oil changes, long term savings and convenience. Even if you drive only 12,000 miles per year, the cost for AMSOIL motor oil is less than you pay for petroleum oil now! And you still get better wear protection, lower engine temperatures, improved fuel efficiency and easier cold-weather starts. All of these benefits add up to reduced operating costs and longer engine life. Change your oil and filter today and in 12 months change the oil and filter again. That's it! What could be more convenient and good for your vehicle, too?



You can order products directly online by clicking on the Online Store link at the top of every page. Or click on Services to learn more about the AMSOIL Preferred Customer Membership and how to purchase AMSOIL at wholesale price.
Get better fuel economy!!
Fuel economy is becoming more important with each passing year. Gas and diesel prices keep rising, putting a major strain on businesses that rely on vehicles and heavy equipment in their daily operations. AMSOIL synthetic lubricants improve fuel economy by allowing moving parts to move more freely, using less energy and creating less friction than when conventional lubricants are used. The use of AMSOIL synthetic motor oil, gear lubes and transmission fluids can have a profound impact on fuel economy. Industry tests demonstrate an average conservative decrease in fuel consumption by two to five percent by switching to synthetic lubricants. Many AMSOIL customers report even larger gains in fuel economy.
Better for the environment!
AMSOIL INC. doesn’t just leave the responsibilities of environmental protection to the products; the company itself is diligent in making efforts to keeping the earth clean. AMSOIL recycles virtually 100 percent of the corrugated trays and packaging boxes that come into its facilities, equaling several tons of recycled cardboard each month. All used steel drums and all “clean” plastic bottles are also recycled. AMSOIL INC. is determined to continue to set the bar high for the lubrication industry across the board, including with regards to environmental responsibilities. Our long-standing quality products lead the way to a greener, healthier planet for all.
AMSOIL EXCEEDS BOTH FACTORY AND STORE BRAND STANDARDS
The oil is very black after 5,000 miles, is it still good?
It is perfectly normal to not trust the 25,000 drain claim. If you want to be absolutely sure your oil is still good, you can get it tested from an oil analysis lab. The lab result will tell you if the oil is still good or needs to be replaced. In addition it will tell you the amount of metal such as brass, copper, and iron in the oil. If the levels are high you may have an engine or tranny wearing quickly.

This service costs about $30 per analysis.
Click here to select an oil analysis kit.
AMSOIL compared against the name brand
AMSOIL Synthetic 10W-30 Motor Oil (ATM) and 10 competing conventional, synthetic and synthetic blend 10W-30 motor oils were subjected to a series of motor oil tests. The competing oils included petroleum-based Castrol GTX, Chevron Supreme, Havoline, Formula Shell and Pennzoil, as well as synthetic-blends Trop Artic and Motorcraft, and full-synthetic Pennzoil Platinum, Quaker State Advanced Full Synthetic and Mobil 1 Extended Performance. Seven tests were run on the motor oils. The Thin-Film Oxygen Uptake Test (TFOUT) measures the oxidation stability of engine oils. The NOACK Volatility Test measures the evaporation loss of oils in high temperature service. Pour Point indicates the lowest temperature at which a fluid will flow. Total Base Number (TBN) is the measurement of a lubricant’s reserve alkalinity for combating acids. The Cold Cranking Simulator Test (CCS) indicates the degree to which a lubricant can impact cold weather starting. A final test to compare cost per 25,000 miles of operation was also conducted to demonstrate the cost-effectiveness of using a synthetic oil over extended drain intervals. The impressive test results show AMSOIL Synthetic 10W-30 Motor Oil outperformed the competitors in nearly every test.

Click here to open the pdf file.
A Study of Motorcycle Oil
The second edition of the AMSOIL "Study of Motorcycle Oils" (part # G2156) is now available. See how 32 of the top selling motorcycle oils compare in the most critical areas of motorcycle performance. This no-frills study was designed to help consumers make informed decisions when selecting motorcycle oils. There is no hype, no sales pitch, just facts. Never before has so much information on motorcycle oils been delivered in one easy-to-understand source.

See for yourself how the full range of the most popular motorcycle oils stand up to the hot-running, hard-pounding, high RPM conditions of motorcycle applications. This complete battery of tests includes wear protection, rust protection, oxidation stability and more.

Click here to open the pdf file.
AMSOIL EAO Oil Filters
The level of damage particles cause to an engine is directly related to the size of the particles. The oil stream within the engine flows between wear-sensitive surfaces that usually have clearances between 2 and 22 microns. It is contaminants in this size range that pose the greatest threat as they can slip between moving components, causing a great deal of wear.

Click here to open the pdf file.
More performance tests and comparisons