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Motor Oil Test and Comparison

AMSOIL vs. Mobil 1

409,000-Miles Without An Oil Change

AMSOIL Excels in API Sequence IIIF Performance Test

Motor Oil Performance Tests & Comparisons

Temperature Extremes Call For Superior Motor Oils

Why Harley-Davidson Owners Choose AMSOIL

Synthetic Motorcycle Oil & Harley-Davidson Warranty Issues

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

8.2% More MPG With AMSOIL Synthetic Lubricants

AMSOIL Proves Superior In Clark County Field Test

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil is Correct Choice for Jeff Foster Trucking

AMSOIL Products Improve Efficiency and Reduce Operating Costs for Gerlach Trucking

What is the Noack Volatility Test?

What is the Four-Ball Wear Test?

What is TBN?


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AMSOIL Benefits Beyond Extended Drain Intervals

Extended drain intervals are a major selling point for AMSOIL synthetic motor oils, saving customers time, labor and money. Key to the ability of AMSOIL synthetic motor oils to provide extended drain intervals are top quality synthetic base stocks and premium additive packages that ensure they maintain their protective viscosities, neutralize acids and prevent the formation of harmful sludge and varnish deposits.

Still, however, even with vehicle manufacturers and a number of lubricant manufacturers extending interval recommendations, some customers are stuck on 3,000-mile drains and have not yet embraced the concept of extended drain intervals. In addition to the benefits of extended drain intervals, the superior formulations of AMSOIL synthetic motor oils provide many other benefits:

Extended Equipment Life

AMSOIL synthetic motor oils are formulated with top-of-the-line synthetic base stocks that provide excellent viscosity film strength for superior wear protection, while robust additive packages further reduce wear in metal-to-metal contact regions, extending equipment life and reducing major repairs. In addition, while wear protection is often compromised in conventional oils operating in hot and cold temperature extremes, AMSOIL synthetic motor oils maintain their protective viscosities in extreme temperatures, providing unsurpassed protection and performance.

Fuel Economy

AMSOIL synthetic motor oils have been shown to yield significant increases in fuel economy over conventional motor oils. Petroleum based lubricants are composed of irregular molecules of various sizes that create excess friction, in addition to the friction generated between moving parts. The vehicle's engine must burn extra fuel to overcome this friction, decreasing fuel economy. Conventional lubricants are also very susceptible to volatility, increasing viscosity and forcing the engine to consume more energy pumping oil at the expense of fuel economy. Because AMSOIL synthetic lubricants contain only smooth, uniform molecules, they effectively reduce friction, resist volatization and improved fuel efficiency.

Cold Temperature Protection

Conventional lubricants often contain paraffins (wax) that cause the lubricants to thicken and lose ability to flow in cold temperatures. Cold thickening lubricants sometimes hinder the rotation of the vehicle's crankshaft so much that it cannot rotate fast enough to start the engine. In addition, cold thickening lubricants may leave working parts unprotected for as long as five minutes, causing significant wear. AMSOIL synthetic motor oils contain no paraffins and flow readily in extremely cold conditions, reducing drag on moving engine parts, allowing engines to start in the coldest winter temperatures and providing immediate post startup lubrication.

High Temperature Protection

High temperature operation causes many conventional oils to volatize and lose mass, seriously compromising their protective qualities. AMSOIL synthetic motor oils provide superior protection and performance in high temperatures, resisting volatization, keeping oil consumption and emissions extremely low and ensuring engines are thoroughly lubricated and protected. High temperatures also contribute to oil oxidation that leaves behind damaging acids and deposits. AMSOIL synthetic motor oils are formulated with premium additive packages that resist oxidation and keep engines running clean and deposit free.

Corrosion Protection

Corrosion inhibition is an especially important feature for engines subject to frequent short trip operations and for stored engines. AMSOIL synthetic motor oils contain anti-corrosion agents, preventing the formation of corrosion on critical engine components and extending equipment life.

AMSOIL synthetic motor oils offer many significant benefits, including extended equipment life and fewer repairs, improved fuel economy, superior protection in hot and cold temperature extremes and protection against corrosion. Even if a customer is not yet sold on the benefits of extended drain intervals, there are many more reasons to buy and use AMSOIL synthetic motor oils.



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AMSOIL Product Information

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Premium AMSOIL Synthetic Motor Oils offer the longest drain intervals on the market, unsurpassed protection and performance that effectively extends equipment life and improved fuel economy, saving customers money at the pump and reducing the nation's dependence on foreign oil.

"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 extended 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.

Another AMSOIL First

More than 20 years ago, AMSOIL began using the NOACK volatility test as a comparison tool and measurement of quality. Back then, nearly every oil tested side-by-side with AMSOIL synthetic motor oils failed, and those that passed barely squeaked by. Other oil companies paid no attention to NOACK results until Ford Motor Company made it a requirement for service fill oils, validating what AMSOIL had said all along.

THE NOACK Volatility Test
The NOACK Volatility Test determines the evaporation loss of lubricants in high temperature service. The more motor oils vaporize, the thicker and heavier they become, contributing to poor circulation, reduced fuel economy and increased oil consumption, wear and emissions. AMSOIL Synthetic Motor Oil resists high temperature volatization better than other motor oils. AMSOIL Synthetic Motor Oil maintains peak fuel efficiency and reduces oil consumption and emissions.

AMSOIL Now An ISO Certified Manufacturer
AMSOIL recently received ISO 9001:2000 certification of our Quality Management System (QMS). NSF International Strategic Registrations is the registrar that has verified our QMS meets the requirements of the ISO 9001:2000 standard, the most widely utilized quality standard throughout the world for quality management systems. ISO standards are used by over 300,000 companies worldwide setting rigorous standards for businesses, government and industry.

ISO 9001:2000 is applicable to any manufacturing and service organization providing a framework for system development that focuses on the customer, quality system performance and ongoing improvement. AMSOIL received ISO 9001:2000 registration under the scope: synthetic lubricants blending, packaging, and other fulfillment directly associated with lubricant product.

The ISO certification puts AMSOIL in line with some of the most efficient companies in the world. It is further assurance that the products and services AMSOIL provides will continue to maintain the high level of quality the company always demanded.

AMSOIL Product Information

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Which AMSOIL Products Are Recommended For Your Car or Truck?
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What Drain Interval Does AMSOIL Recommended For Your Vehicle?
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