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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 - Reducing Friction Is An Oil's Primary Function

Synthetic Lubricants Have Inherently Superior Lubricity For Maximum Friction Reduction.

Dan Peterson, Vice President, AMSOIL Technical Development

Dan Peterson
Vice President,
Technical Development

The friction created in equipment as a result of surfaces rubbing together robs us of huge amounts of energy each year. Just think if we could eliminate this energy-robbing phenomenon; there would be no energy shortages and we would all save money through lower energy consumption.

Unfortunately, there is no solution that completely eliminates this energy drain, so we have to live with these losses. We have not given up this quest though, and progress is made each year toward minimizing energy-robbing friction. On the other hand, we depend heavily on friction-producing events every day. We all want significant friction between the soles of our boots and ice when we walk on slippery sidewalks. We also appreciate the value of friction when we want our cars to stop quickly to avoid an accident.

Although lubricants are tasked with fulfilling many important functions, such as cooling and cleaning, reducing friction is their primary purpose. When placed between two components in contact, lubricants maintain a layer of separation. Though the separation may be only a few millionths of an inch, it is sufficient to minimize contact.

Lubricity is the measure of a lubricant's friction-reduction capabilities, and it varies from one fluid to another. Base-oil design and friction-reducing additives both impact a lubricant's friction-reduction capabilities. The use and balance of these materials impact the friction characteristics of the overall system.

A lubricant's response to temperature changes, ability to form a film under pressure and polarity affect its lubricity.

We all know that it is desirable for lubricant viscosity to change as little as possible with temperature fluctuations, and the measure for this property is viscosity index. When a lubricant becomes too thick in cold temperatures, it will not readily flow to the areas that need to be lubricated. If it becomes too thin at high temperatures, the thin film separating surfaces becomes disrupted, allowing metal-to-metal contact.

Lubricants with a higher viscosity index are better because their viscosity changes less with temperature swings.

Another important lubricant property is the ability to resist shearing or tearing under stress. The starting thickness of an oil is important, but the more critical property is the thickness of the oil after it has run in the equipment part way through the lubricant life. Oil formulations built with cheaper viscosity improvers tend to shear more, resulting in much lower lubricant thickness part way through the lubricant life. This results in reduced protection, which can be of particular concern if the equipment is highly dependent on a specific lubricant viscosity.

In lubrication, polarity is a measure of a material's affinity for like surfaces. Water and metal are two examples of polar surfaces. Highly refined petroleum oils by themselves are not highly polar and do not naturally migrate to metal surfaces. High-quality synthetic lubricants, on the other hand, have the correct polarity, which allows them to provide effective boundary lubrication and separation of surfaces.

Whether it is a bearing, gear or cylinder, minimizing contact between components minimizes friction and wear. An oil's viscosity and inherent lubricity are the key characteristics in minimizing contact between components. When the viscosity is insufficient to totally separate the components, anti-wear or extreme-pressure additives provide separation by forming chemical barriers.

Synthetic technology is the primary weapon to fight the battle against friction. Synthetic lubricants are chemically engineered from the ground up to ensure molecular uniformity, purity and predictable chemical properties. For these reasons, synthetic lubricants can outperform conventional lubricants in the areas of quality, reliability and service life. AMSOIL synthetic lubricants also feature outstanding additive combinations to provide industry-leading protection against friction and ensure peak equipment operation and longevity. That means better mileage, less downtime, less maintenance and more savings for you. Published, AMSOIL Magazine 02/14.

AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oils are formulated to meet the latest API SN Resource Conserving and ILSAC GF-5 industry specifications. AMSOIL Signature Series Oils include 0W-20, 0W-30, 5W-30 and 10W-30 and represent the very best motor oils AMSOIL has to offer, allowing motorists to take advantage of maximum extended drain intervals. AMSOIL Signature Series Synthetic Motor Oils are recommended for drain intervals of up to 25,000 miles/one year, whichever comes first (15,000 miles/one year in severe service conditions).

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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.



Motorcycle Testimonials

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AMSOIL Synthetic Diesel Oil Articles and Testimonials

"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.

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