AMSOIL Signature Series 100% Full Synthetic Motor Oil
0w20, 0w30,
5w20, 5w30 and 10w30
AMSOIL Signature Series Are Designed for Those Who Demand
the
Best Motor Oil for Their Car
Save Time and Money with a 25,000 Mile Oil Change Interval
Motor Oil
Diesel Oil
Natural Gas Engine Oil
Racing and
High Performance Oil
Motorcycle Oil
4 Stroke Oil
2 Cycle Oil
Engine Assembly Lubes
Suspension Fluid
Gear Oil
Grease
Transmission Fluid
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Coolant Additive
Oil Analysis
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AMSOIL Clothing, etc.
AMSOIL Signature Series Synthetic Motor Oils deliver extraordinary lubrication in all types of automotive gasoline engines and are designed for those who demand the absolute best in motor oil performance. By combining industry-premier synthetic technology with AMSOIL premium additives, AMSOIL Signature Series Synthetic Motor Oils exceed the higher performance demands of modern engines. These oils withstand the stress of higher horsepower, higher heat and complicated emissions control systems.
AMSOIL Signature Series Synthetic Motor Oils are engineered to outperform competitive conventional and synthetic motor oils. They deliver long-lasting performance, superior engine protection, maximum fuel economy and keep engines clean. No other major oil manufacturer matches AMSOIL Signature Series service life of up to 25,000 miles or one year. Available in 0w20, 0w30, 5w20, 5w30 and 10w30 oil viscosity weights.
Personally endorsed by AMSOIL founder and President Al Amatuzio, each bottle bears his signature and describes how he developed the first API-qualified full synthetic motor oil and launched the synthetic motor oil industry. Read more about the history of AMSOIL.



- Extended oil change intervals — up to 25,000 miles or 1 year
- Maximizes fuel economy
- Reduces engine wear
- Longer engine life
- Reduces oil consumption and emissions
- Keeps engine clean
- Excels in hot- and cold-temperature extremes
- Retains oil viscosity
- Product Code/Price
- Product Details
- Shipping Info/Return Policy
| AMSOIL Signature Series 0w20 Synthetic Motor Oil | |
|---|---|
Product Code |
Pkg./Size |
| ASMQT-EA | Quart Bottle |
| ASMQT-CA | Quart Bottles (case of 12) |
| ASM1G-EA | Gallon Bottle |
| ASM1G-CA | Gallon Bottles (case of 4) |
| ASM30-EA | 30-Gallon Drum |
| ASM55-EA | 55-Gallon Drum |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
| AMSOIL Signature Series 0w30 Synthetic Motor Oil | |
|---|---|
Product Code |
Pkg./Size |
| AZOQT-EA | Quart Bottle |
| AZOQT-CA | Quart Bottles (case of 12) |
| AZO1G-EA | Gallon Bottle |
| AZO1G-CA | Gallon Bottles (case of 4) |
| AZO30-EA | 30-Gallon Drum |
| AZO55-EA | 55-Gallon Drum |
| AZO27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
| AMSOIL Signature Series 5w20 Synthetic Motor Oil | |
|---|---|
Product Code |
Pkg./Size |
| ALMQT-EA | Quart Bottle |
| ALMQT-CA | Quart Bottles (case of 12) |
| ALM1G-EA | Gallon Bottle |
| ALM1G-CA | Gallon Bottles (case of 4) |
| ALM30-EA | 30-Gallon Drum |
| ALM55-EA | 55-Gallon Drum |
| ALM27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
| AMSOIL Signature Series 5w30 Synthetic Motor Oil | |
|---|---|
Product Code |
Pkg./Size |
| ASLQT-EA | Quart Bottle |
| ASLQT-CA | Quart Bottles (case of 12) |
| ASL1G-EA | Gallon Bottle |
| ASL1G-CA | Gallon Bottles (case of 4) |
| ASL30-EA | 30-Gallon Drum |
| ASL55-EA | 55-Gallon Drum |
| ASL27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
| AMSOIL Signature Series 10w30 Synthetic Motor Oil | |
|---|---|
Product Code |
Pkg./Size |
| ATMQT-EA | Quart Bottle |
| ATMQT-CA | Quart Bottles (case of 12) |
| ATM1G-EA | Gallon Bottle |
| ATM1G-CA | Gallon Bottles (case of 4) |
| ATM30-EA | 30-Gallon Drum |
| ATM55-EA | 55-Gallon Drum |
| ATM27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
Best Motor Oil Brand
Setting the standard for protection and performance, AMSOIL Signature Series Synthetic Motor Oils contain higher TBN than competing motor oils. The higher the Total Base Number (TBN), the more effective the oil is and the longer it will last. AMSOIL Signature Series Synthetic Motor Oils contain a TBN of 12.6, whereas other passenger car motor oils offer only 7 TBN and are formulated with detergents that quickly lose TBN value.
With TBN loss, oils lose their ability to neutralize acids, prevent high-temperature deposits and inhibit rust. TBN loss is a primary reason oils require changing. AMSOIL Signature Series Synthetic Motor Oils contain highly effective detergent-alkalinity additives, which is just one of the reasons AMSOIL is the best motor oil brand on the market.
Extended Oil Change Intervals
AMSOIL Signature Series Synthetic Motor Oils extend oil change intervals far beyond those recommended for conventional oils (see Service Life below). Their unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize the acids that shorten the service life of other oils. AMSOIL Signature Series Synthetic Motor Oils are designed to deliver the best possible engine protection, cleanliness and performance over extended oil change intervals. They reduce vehicle maintenance and waste oil disposal costs.
Designed to Maximize Energy Efficiency and Improve Fuel Economy
AMSOIL Signature Series Synthetic Motor Oils are designed to maximize energy efficiency and improve fuel economy. Unlike conventional oils, their uniform molecular structure helps them flow more freely and reduce friction between metal surfaces. Anti-friction additives are included to further improve energy efficiency.
Note: As stricter fuel economy standards are being set, auto makers are turning to low-viscosity oils (such as 0w20 and 0w30 motor oils) for their fuel economy performance. Unlike most oil manufacturers, AMSOIL insists on using long-life viscosity index improvers that not only allow their oil to pass required fuel efficiency tests, but to also provide continued fuel economy performance and wear protection throughout the life of the oil. It is, after all, part and parcel of the oil's formulation.
- AMSOIL Signature Series 0w30 replaces other Ow30, 5w30 and 10w30 motor oils
- AMSOIL Signature Series 0w20 replaces other SAE 0w20 and 5w20 motor oils
Longer Engine Life
AMSOIL Signature Series Synthetic Motor Oils provide outstanding anti-wear protection. They have excellent viscosity film strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact regions to extend engine life.
Reduces Oil Consumption and Emissions
Evaporation (volatility) occurs when oil gets hot. Vaporized oils grow thick and heavy, which causes them to circulate poorly, increasing engine wear and reducing fuel efficiency. Oil consumption skyrockets and emissions are increased as oil boils off. AMSOIL Signature Series Synthetic Motor Oils exhibit an extremely low volatility rate, making them the best oil for controlling volatility-related oil consumption and emissions.
Keeps Engine Clean
AMSOIL Signature Series Synthetic Motor Oils are heavily fortified with detergent and dispersant additives to prevent sludge deposits and keep engine clean longer for top performance, efficiency and maximum service life.
Excels in Hot and Cold Weather Extremes
AMSOIL Signature Series Synthetic Motor Oils resist thermal (heat) breakdown better than conventional oils. And unlike conventional oils, AMSOIL Signature Series Synthetic Motor Oils contain no wax, staying fluid in the coldest winter temperatures for easier cold weather starting, improved oil flow and reduced bearing wear. AMSOIL Signature Series 0w20, 0w30, 5w20, 5w30 and 10w30 Synthetic Motor Oils remain fluid down to -65, -60, -60, -60 and -54 degrees Fahrenheit, respectively.
An Easy Way to Save Money and Time
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! Plus, you 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. And, even more, you generate less waste oil, which helps protect our environment and reduce our dependence on foreign oil. 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?
Retains Oil Viscosity
AMSOIL Signature Series Synthetic Motor Oils exceed the most demanding worldwide performance standards and dramatically outperform conventional petroleum oils. AMSOIL Signature Series 0w20, 0w30, 5w30 and 10w30 Synthetic Motor Oils surpass the North American SAE and European ACEA oil specification for high-temperature/high-shear viscosity, which means they won't shear back to a lower viscosity oil in the high-temperature/high-shear conditions of today's small, high rpm engines. AMSOIL 0w20 remains a 0w20, AMSOIL 0w30 remains a 0w30, AMSOIL 5w20 remains a 5w20, AMSOIL 5w30 remains a 5w30 and AMSOIL 10w30 remains a 10w30.
Service Life
AMSOIL Signature Series Synthetic Motor Oils are recommended for extended oil drain intervals in unmodified, mechanically sound gasoline-fueled vehicles as follows:
Gasoline Engines:
Normal Service: Up to 25,000 miles or one year, whichever comes first
Severe Service: Up to 15,000 miles or one year, whichever comes first
Non-Gasoline Engines:
Extend the oil change interval according to oil analysis or follow the OEM (Original Equipment Manufacturer) oil drain interval recommendation.
Definitions:
Modified Engines — Engines operating under modified conditions are excluded from extended drain recommendations. Examples include the use of performance computer chips; non-OEM approved exhaust, fuel or air induction systems; and the use of fuels other than those recommended for normal operation by the manufacturers.
Mechanically Sound Engines — Engines in good working condition and do not, for example, leak oil or consume excessive amounts of oil, are not worn out, do not overheat, do not leak antifreeze and have properly working emissions control systems. AMSOIL recommends repairing malfunctioning engines prior to the installation of AMSOIL synthetic oils.
Normal Service — Personal transportation vehicles frequently traveling greater than 10 miles (16 km) at a time and not operating under severe service.
Severe Service — Turbo/supercharged engines, commercial or fleet vehicles, excessive engine idling, vehicles with over 100,000 miles without prior regular use of AMSOIL motor oil, daily short trip driving (less than 10 miles/16km), frequent towing, plowing, hauling or dusty-condition driving.
Oil Filter Service Intervals
Extended oil drain intervals are based on the user following AMSOIL recommended oil filter service intervals:
- If using an AMSOIL Ea Oil Filters, install a new oil filter at time of oil change. AMSOIL Ea Oil Filters are designed for extended oil drain intervals. They stop smaller particles, allow more oil flow and last longer than regular filters.
- If using other brands of oil filters, install a new oil filter at time of oil change then change at the engine manufacturer's recommended filter change intervals.
Good to Know
- For best results, use AMSOIL Engine and Transmission Flush before installing AMSOIL synthetic motor oil.
- For maximum engine protection, use an AMSOIL Ea Oil Filter and an AMSOIL Ea Air Filter.
- AMSOIL recommends checking the oil at a minimum of every 3,000 miles to maintain proper fill levels and maximum engine protection.
- Oil Analyzers, Inc., a division of AMSOIL, Inc., provides cost effective, quality oil analysis services.
- Most quick lube service centers will install these products upon request or install them yourself.
Applications
AMSOIL Signature Series Synthetic Motor Oils are excellent for use in all types of gasoline-fueled vehicles, including those under warranty. They are recommended for applications requiring the worldwide performance specifications listed on the AMSOIL Corporate website (see "Engine Protection Requirements" below).
Engine Protection Requirements
AMSOIL Signature Series Synthetic Motor Oils meet or exceed specific API, ACEA and ILSAC service classifications and the engine protection requirements of various domestic and foreign engine manufacturers. Please visit the AMSOIL Corporate website for an up-to-date listing on AMSOIL Signature Series 0w20 Synthetic Oil, AMSOIL Signature Series 5w20 Synthetic Oil, AMSOIL Signature Series 0w30 Synthetic Oil, AMSOIL Signature Series 5w30 Synthetic Oil or AMSOIL Signature Series 10w30 Synthetic Oil.
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