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10W-40 Synthetic Premium Protection Motor Oil (AMO)

 10W-40 Synthetic Premium Protection Motor Oil (AMO)
Product Code: AMO • Brand: AMSOIL

For use in both gasoline and diesel engines. Offers multi-functionality and wear protection. Ideal for applications where the extra protection of a higher-viscosity oil is desired. Excellent for motor homes and older vehicles, as well as many types of modern equipment and compatible with some motorcycles.

Package sizes include:

Quart Bottle
Gallon Bottle
2.5-Gallon Bottle
30-Gallon Drum
55-Gallon Drum

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MSDS Data Sheet

Product Details

Product Applications

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is a multi-use, premium synthetic lubricant for applications that require or benefit from a higher viscosity oil. It is recommended for air and liquid cooled, large or small gasoline and diesel engines, transmissions and chaincase applications where 10W-40 oil is required with any of the following specifications:

Product Application Specs

• API SL, SJ, SH, SG
• API CI-4+, CI-4, CH-4, CF, CF-2
• ISO-L-EMA
• Caterpillar ECF-1
• JASO MA (Motorcycle)
• MAN 271/3275
• MTU Type 2
• Cummins 20071/20072/20076/20077
• Volvo, VDS-2, VDS
• Mack EO-M+, EO-M
• ACEA A3/B3, E3, E5
• MB 228.1, 228.3, 229.1
• Detroit Diesel 93K214

Product Description

AMSOIL Premium Protection Synthetic Motor Oil is formulated to provide superior protection and performance in a wide variety of demanding applications. Its unique combination of synthetic base stocks and a superior additive package results in a formulation that exceeds the requirements of most gasoline or diesel applications that call for 10W-40 motor oil. Premium Protection Synthetic Motor Oil is ideal for high-mileage vehicles and high-stress vehicles subject to hot temperatures, heavy hauling, trailer pulling or off-road use. It provides the extra anti-wear protection required by engines with flat-tappet cams and high-tension valve springs. AMSOIL Premium Protection Synthetic Motor Oil offers flexibility and performance beyond conventional oils for convenience and trouble-free operation.

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

Superior Wear Protection

AMSOIL Premium Protection Synthetic Motor Oil is high-viscosity oil engineered to protect against metal-to-metal contact. It resists viscosity shear and is formulated with a heavy treatment of zinc and other anti-wear additives for excellent protection of gears, bearings, cam lobes and other high-pressure components in engines and transmissions. AMSOIL Premium Protection Synthetic Motor Oil helps extend equipment life.

Wet Clutch Compatible

AMSOIL Premium Protection Synthetic Motor Oil contains no friction modifiers, making it ideal for motorcycles, maintenance equipment and other wet-clutch transmission applications. Formulated to prevent clutch glazing and slippage, it helps ensure smooth clutch engagement and long-term, dependable transmission operation. Premium Protection Synthetic Motor Oil reduces clutch wear for extended transmission life.

Resists Oxidation and High-Temperature Breakdown

AMSOIL Premium Protection Synthetic Motor Oil is specifically formulated to overcome the thermal deficiencies common to conventional petroleum oils. Volatilization (burn-off), oxidation and excessive deposit formation from high heat are greatly reduced. Viscosity thickening is controlled and engines run cleaner, promoting cooler operation and long engine life in air or liquid-cooled engines.

Extends Drain Intervals in Gasoline and Diesel Engines

Superior AMSOIL synthetic base stock and additive technology exceeds the requirements of both gasoline and diesel engines. AMSOIL Premium Protection Motor Oil is designed to neutralize acids, disperse soot and last longer in service than conventional oils.

MIXING AMSOIL

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil 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 Oils.

SERVICE LIFE

AMSOIL Synthetic 10W-40 Premium Protection Motor Oil is recommended for extended intervals in unmodified, mechanically-sound vehicles or equipment as follows:

Diesel Engine Service
• Normal Service - Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.
• Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.

Gasoline Engine Service
• Normal and Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.

Motorcycles, Small Engines, Stationary Engines, Heavy Equipment and Other Applications
•Extend drain intervals based on oil analysis or follow the manufacturer-recommended drain interval.

AMSOIL Ea™ Full-Flow Oil Filters are designed for extended drain intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea™ Full-Flow Oil Filters and replace at the time of oil change. Other oil filters should be changed at standard OEM* intervals.

* OEM - Original Equipment Manufacturer

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 AMO.

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

Close Product Detail
Technical Data
TYPICAL PHYSICAL PROPERTIES
 AMSOIL High Performance Synthetic 10W-40 Motor Oil (AMO)
Kinematic Viscosity @ 100°C, cSt (ASTM D445)14.5
Kinematic Viscosity @ 40°C, cSt (ASTM D445)91.7
Viscosity Index (ASTM D2270)164
CCS Viscosity @ -25°C, cP (ASTM D5293)5638 (-25)
Pour Point °C (°F) (ASTM D97)-44 (-47)
Flash Point °C (°F) (ASTM D92)230 (446)
Fire Point °C (°F) (ASTM D92)250 (482)
High Temperature/High Shear @ 150°C and 1.0 X 106 s-1, cP (ASTM D4683), cP4.3
Four Ball Wear Test (ASTM D4172 @ 40 kgf, 150°C, 1800 rpm, 1 hour, Scar in mm)0.40
Noack Volatility, % weight loss (g/100g) (DIN 51581)6.7
Total Base Number12.1
Close Technical Data

 10W-40 Synthetic Premium Protection Motor Oil (AMO)

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Product Name: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
Current Rating: 4.9 out of 5 stars
Votes & Reviews: 21 vote(s) and 19 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 griz86: space

Fantastic oil.

This oil has a very strong cleaning aspect. When I drained the oil the first time I used it in a motorcycle with 17000 miles on it, it came out looking like thick almost gloppy molasses. Very black and quite thick. Subsequent oil changes have resulted in the oil coming out much cleaner. So much so that I can see light through the stream of oil as it is draining from the engine. I recently removed a side cover to inspect the clutch plates. The inside of the engine is clean like it was new. I'm very happy with this product.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 jim: space

this oil works great

I use this oil in my high mile Plymouth with 175k miles on the engine without any trouble with lots of highway miles. thanks

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Robert: space

I have ben buying it for the past 40 years

I run AMSOIL 10W/40 in both vehicles a 2006 Tundra Limited, a 2012 Dodge Caravan and my John Deer 300X Riding mower and in every vehicle I have owned over the past 40 years. When 50w AVOIL was available I ran it in my 1977 Cessna 172N.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Buck: space

Good product

Put 7qt. in my 68 Charger and I am very happy with results.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Mopar maniac: space

Never running Mobile again

Not the cheapest, just the best. After tearing down my motor after 250hr for rebuild/refresh, my rod, cam, and crank bearings still looked new. Keep in mind this isn't a pampered motor. It gets run hard, yet the rebuild seemed completely unnecessary.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Thomas: space

Have been using it for years

I have used it in my durango for years.It is a great synthetic oil

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Bob Barker: space

I won't use any other oil

I love the piece of mind knowing when I crank up my truck in the morning there's no dry starts

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 ZH: space

Excellent

I am a firm believer in Amsoil. This oil helped me out with my 75 chevy 350. It took away an engine tick. It also runs and idles a lot smoother. Excellent product.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 mike_oni_gaijin: space

I love the high zinc oil!

I've been using this oil in my drift cars for years now, and have gotten to tear a couple motors down for rebuilds ( due to low compression) and got the opportunity to see that the oil has Done it's job! It kept the engin clean inside, and protected the bearing like it was supose to!

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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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 Bobby: space

2013 Toyota RAV4

My application is a 2013 Toyota RAV4 with 15k miles. I use 10w-40 Amsoil and change just once a year since I normally drive about 3800 miles a year anyway using Amsoil Full Synthetic..

I feel more confident using this and changing it myself the first several years as opposed to letting Toyota change it for FREE with regular oil every 6 months. Basically I can do it myself once a year and still save time from waiting around at a stealership lobby and have confidence I will not sludge up ever with better protection. Not to mention I know I do it right and tighten everything back up.

I personally had some bad experiances in the past and do not trust them working on my car since I bought it new. One time the spark plugs were apparently never tightened as an example on another new car we purchased during a service.

Item Reviewed: 10W-40 Synthetic Premium Protection Motor Oil (AMO)
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