AMSOIL Shipping Information
Online Store Order FREE Product Catalog Preferred Customer Program Business Accounts Dealership Opportunity
Email Price List

SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Product Code: ALM • Brand: AMSOIL

The Top Tier of AMSOIL Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines.

Package sizes include:

Quart Bottle
Gallon Bottle
30-Gallon Drum
55-Gallon Drum
275-Gallon Tote

See Pricing or Place an Order
MSDS Data Sheet

Product Details

Product Applications

AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM"¦
• ILSAC GF-5, GF-4"¦ ACEA A1/B1
• Ford WSS-M2C945-A, WSS-M2C930-A
• Chrysler MS-6395
• GM dexos1™ (supersedes 6094M) Fortified with detergents that exceed dexos1™ sulfated ash specifications.

Product Description

AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Extends Drain Intervals

AMSOIL Signature Series Synthetic Motor Oil can extend drain intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series Synthetic Motor Oil is designed to deliver the best possible engine protection, cleanliness and performance over extended drain intervals. It reduces vehicle maintenance and waste oil disposal costs.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Maximizes Fuel Economy

AMSOIL Signature Series Synthetic Motor Oil is designed to maximize energy efficiency for improved fuel economy. Unlike conventional oils, its uniform molecular structure helps it flow more freely and reduce friction between metal surfaces. Anti-friction additives are included to further improve energy efficiency.

Reduces Engine Wear

Signature Series Synthetic Motor Oil provides outstanding anti-wear protection. It has excellent viscosity film strength to separate metal surfaces and robust anti-wear additives to further reduce wear in metal-to-metal contact regions for improved engine life.

Reduces Oil Consumption and Emissions

Volatility (burn-off) occurs when oil gets hot, causing high oil consumption and emissions. AMSOIL Signature Series Synthetic Motor Oil exhibits an extremely low volatility rate; it controls volatility-related oil consumption and emissions.

Excels in Extreme Temperatures

AMSOIL Signature Series Synthetic Motor Oil resists thermal (heat) breakdown better than conventional oils. It is heavily fortified with detergent and dispersant additives to help prevent sludge deposits and keep engines clean. And unlike conventional oils, Signature Series Synthetic Motor Oil contains no wax, staying fluid in the coldest winter temperatures for easier starting, improved oil flow and reduced bearing wear.

Compatibility

AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil's life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

SERVICE LIFE

AMSOIL Signature Series Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline-fueled vehicles as follows:

• Normal Service(3) - Up to 25,000 miles or one year, whichever comes first.
• Severe Service(4) - Up to 15,000 miles or one year, whichever comes first.
• In all non-gasoline-fueled vehicle applications, extend the oil change interval according to oil analysis or follow the OEM* drain interval.

*OEM - Original Equipment Manufacturer

(1) Engines operating under modified conditions (non-stock) 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 manufacturer.

(2) Mechanically sound engines are in good working condition and do not, for example, leak 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.

(3) Personal vehicles frequently traveling greater than 10 miles (16 km) at a time and not operating under severe service.

(4) Turbo/supercharged engines, commercial or fleet vehicles, excessive idling, vehicles with more than 100,000 miles without prior continuous use of AMSOIL motor oil, daily short-trip driving less than 10 miles (16 km), frequent towing, plowing, hauling or dusty condition driving.

AMSOIL Ea® Full-Flow Oil Filters are designed for extended change intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL ALM.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Close Product Detail
Technical Data
TYPICAL TECHNICAL PROPERTIES
Signature Series 5W-20 Synthetic Motor Oil (ALM)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 8.7
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 50.2
Viscosity Index (ASTM D-2270) 153
CCS Viscosity, cP @ (°C) (ASTM D-5293 4210 (-30)
Flash Point °C (°F) (ASTM D-92) 232 (450)
Fire Point °C (°F) (ASTM D-92) 248 (478)
Pour Point °C (°F) (ASTM D-97) -53 (-63)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800) 5.5%
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
2.8
Four-Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hr, scar diameter, mm (ASTM D-4172)
0.35
Total Base Number (ASTM D-2896) 12.6
Close Technical Data

 SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)

Did this product meet your expectations?

(click on a star to rate)

Product Name: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Current Rating: 4.93 out of 5 stars
Votes & Reviews: 141 vote(s) and 138 user reviews.


A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

This is my "go to oil"

I use this oil in three of my vehicles and home generator. I have had nothing positive experiences with and definitely recommend it.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ras: space

5w-20

Great product, excellent service

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

I'll buy more next year.

Good value, once a year protection.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dirty German: space

Synthetic Motor Oil

I have used Amsoil Synthetic Motor Oils for years now. The engines I put it in have gone 10's of 1000's of mile further than others of the same make and models which friends have owned. The engines run cooler and run better. And I consistently get better fuel mileage. Simply Put, I'm Sold.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rdj519: space

Wifes car

Changing oil 1 time a year and trusting amsoil to protect our investment. Thank you

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

The only oil for me

This oil cause my engine to run cooler along with the great AMSOIL transmission fluid .

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by uncle richard: space

proofs in the pudding

I have used this oil in all my vehicles since 2006. I have a 2006 charger with 3.5 h/o it has 273,000 ; 2006 town and country 3.8 has 255,000; and a 2013 charger 3.6 pentastar which has 148,000 , which gets between 33 and 35mpg on the highway at 70mph. I change the oil filter and top off fluid at 12,500 miles on each vehicle. (High quality filters purchased from amsoil.)

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Electrobent: space

Keeps me out from under the car for as long as possible!

It seems to work. I have not analyzed any gasser oils yet but Amsoil was great in my diesels so I figure they can handle gasoline which is so much cleaner.

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Great product. But...

For some reason, my gas mileage went down after putting this oil in my tundra. I reset the computer at every oil change. I was using Pennzoil 5w-20 and got 15.8 mpg over 5000 mile span. I am nearing 5000 mile mark on this Amsoil product and my mpg is at 15.0

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Flaco: space

This is the only oil I use in my cars.

Maintain all my cars with amsoil

Item Reviewed: SAE 5W-20 Signature Series 100% Synthetic Motor Oil (ALM)
Discussion Url
View All 138 Reviews

Share your AMSOIL Experience
by writing a review


smaller | bigger

1-800-615-3709

Price List Request

Receive wholesale price list in your email.