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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

Motor Oil Test and Comparison

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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Buy AMSOIL at Wholesale Prices AMSOIL Synthetic Gasonline Motor Oils AMSOIL Synthetic Diesel Motor Oils
AMSOIL Synthetic European Motor Oils AMSOIL Synthetic Racing Motor Oils AMSOIL Synthetic Motorcycle Motor Oils
AMSOIL Synthetic 2-Stroke Motor Oils AMSOIL Synthetic 4-Stroke Motor Oils AMSOIL Synthetic Tansmission Fluids
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AMSOIL Filtration Products AMSOIL Other Products Buy AMSOIL at Wholesale Prices

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Articles About Synthetic Motor Oils and Lubricants

Is Your Synthetic Motor Oil Really Synthetic?

What You Need To Know About Motorcycle Oils

AMSOIL V-Twin Synthetic Motorcycle Oil Torture Test


It's All in the Formulation

Dependable Cold Weather Performance

AMSOIL Laboratory Ensures Maximum Quality Control

Motor Oil Quality Evolves With Engine Technology

Diesel Oils Evolve With Diesel Engine Designs

NOACK Volatility Test is a Critical Measurement of Motor Oil Quality

Keep Vehicles Running Like New and Save Money With AMSOIL Products

AMSOIL Synthetic Motor Oils Provide Maximum Value

AMSOIL Synthetic Motorcycle Oils Still On Top

AMSOIL Fuel Efficient Transmission Fluid Provides High Performance Protection

AMSOIL Dealerships Provide Solid Opportunity in Times of Economic Uncertainty

AMSOIL Synthetic Lubricants Maximize Fuel Economy Potential

Motorists Searching for More MPG Find Help with AMSOIL

Improve Fuel Efficiency With AMSOIL Synthetic Lubricants

Improve Fuel Economy

3,000 Mile Oil Change Comes Under Fire

AMSOIL Benefits Beyond Extended Drain Intervals

AMSOIL Specialty Products Have Universal Appeal

AMSOIL Saber Professional Delivers Dependable Protection

AMSOIL Products Formulated for Maximum Performance in Alternative Fuel Vehicles

AMSOIL Benefits Beyond Extended Drain Intervals

The Harmful Effects of Engine Soot

Superior Filtration Leads to Reduced Costs, Extended Equipment Life

AMSOIL Severe Gear Provides Unsurpassed Shear Stability

AMSOIL Severe Gear Synthetic Gear Lubes Demonstrate Superior Shear Stability

AMSOIL Severe Gear Synthetic Gear Lubes Provide Superior Protection Against Thermal Runaway

Gear Oil Market is Heating Up

AMSOIL Applauded for Extended Drain Technology

Boyd Coddington Enjoys Being Part of the AMSOIL Family

NOACK Volatility Test

Warranties and AMSOIL

European Oil for European Vehicles

Superior Filtration Plays Important Role in Engine Protection

Is Your Synthetic Motor Oil Really Synthetic?

A Defining Moment for Synthetics

ExxonMobil Follows AMSOIL into Extended Oil Drain Market

Oil Drain Intervals on the Rise

Does Your Motor Oil Do This?

Why Motor Oil Deteriorates

Quality Takes Priority at AMSOIL

The Environmental Benefits of AMSOIL

Why Harley-Davidson Owners Choose AMSOIL

OEMs Inflate Price of Inferior Lubes to Profit From Consumer Assumptions of Quality

AMSOIL 10W-30 Sequence IIIF Test

AMSOIL 10W-30 API Comparative Motor Oil Tests

AMSOIL Outperforms Mobil 1 SuperSyn

AMSOIL Helps Hudson Iowa Schools Save Money

AMSOIL Diesel Oil - Clark County Field Test

AMSOIL Diesel Oil - Gerlach Trucking Field Test

AMSOIL Diesel Oil - Jeff Foster Trucking Field Test

AMSOIL Diesel Oil - 409,000-Miles Without an Oil Change

Macomb Illinois Fire Department Depends on AMSOIL Synthetic Lubricants

8.2% More MPG with AMSOIL Synthetic Lubricants

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

Change Gear Lube After Break-In Period for Long Differential Life

Gear Oil Basics

Proper Wheel Bearing Maintenance

Hot and Cold Temperature Extremes Call For Superior Motor Oils

AMSOIL Interceptor 2-Cycle Oil Field Test

2-Cycle Engine Applications and Lubrication Needs

A Look at Snowmobile Exhaust Power Valves

AMSOIL Motorcycle Oil vs. Harley Davidson Motorcycle Oil

Harley-Davidson Confirms to AMSOIL That The Use of Synthetic Motor Oils Other Than Harley-Davidson Oil Does Not Void Warranty Coverage

Advanced Protection for Motorized Scooters

AMSOIL Synthetic Motorcycle Oils Provide Superior Transmission and Rust Protection

AMSOIL Is a Leader in MLM Industry

State of the Lubricants Industry Report

AMSOIL Powersports Oils Provide Superior Wet-Clutch Performance

Energy Demand to Continue Rising

AMSOIL Boosts CJ-4 Diesel Oil Offering

Avoid Summer Breakdowns

AMSOIL Field Study Proves Quality of AMSOIL Synthetic 15W-40 Diesel and Marine Oil

AMSOIL vs Shell Rotella T Synthetic Diesel Oil Comparison

Fuel Dilution Surfaces as Issue in Some Modern Diesel Engines

What Company Makes the Highest Quality Lubricants?

AMSOIL Synthetic Oil vs Royal Purple Synthetic Oil

AMSOIL Equipped Motorcycle Wins Fuel Economy Challenge

New Engine Technology Present Benefits Challenges

AMSOIL Engine Builder Package

AMSOIL Synthetic 5W-50 Ford Mustang Oil

AMSOIL Synthetic Dirt Bike Oil Maximizes Performance

Insights from A.J. "Al" Amatuzio, President and CEO, AMSOIL INC.

AMSOIL Has A Long History of MLM Success and Loyalty to Dealers

AMSOIL Dealer Gets Inspiration from AMSOIL Video

AMSOIL Dealers Overcome Obsticles to Obtain Success

New Motorcycle Oil Study Shakes Up The Competition

AMSOIL Customers Honda Lawnmower Survives Without Oil

AMSOIL Synthetic Motor Oil Saves Plymouth Voyager Engine

David Mann Makes AMSOIL History




Motorcycle Testimonials

Business Opportunity Testimonials

From The Presidents Desk

AMSOIL Synthetic Diesel Oil Articles and Testimonials

Why Motor Oil Deteriorates

It is common knowledge that, at some point, engine oil must be changed. It's something that is preached relentlessly to vehicle owners by vehicle manufacturers, quick lubes and oil companies. But consumers are widely unaware of what exactly makes oil changes necessary.

Many factors contribute to a motor oil's demise, but it is essentially the accumulation of contaminants in the oil and chemical changes in the oil itself that make a motor unfit for further service. With time, it is inevitable that the oil will be contaminated by dirt or sludge, or succumb to the extreme pressures or temperatures found inside an engine. AMSOIL Motor Oils are formulated with the industry's most advanced synthetic base stocks and additive packages to combat the forces that deteriorate conventional oils. (read more)

What is the NOACK Volatility Test?
Volatization is a term used to describe what happens to a fluid as it is heated to the point it begins to "boil off." Upon reaching a certain temperature, oil will begin to lose some of its lighter weight molecules as they "boil off" and leave heavier weight molecules behind. Not only does this cause higher oil consumption, this process can also cause increased viscosity making the oil more difficult to circulate through the lubrication system. (read more)

Quality Takes Priority at AMSOIL

The AMSOIL chemical laboratory plays an important role in the daily operations at AMSOIL headquarters. The lab fulfills tech service requests, performs competitor testing and comparisons, and works on the research and development of products at AMSOIL. One of the most important jobs at the lab is quality control. AMSOIL is known for formulating high-quality products and the AMSOIL chemists ensure that everything coming in and going out meets AMSOIL standards. How do they do it? (read more)

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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