Premium Protection 10W-40 Synthetic Motor Oil

Premium Protection 10W-40 Synthetic Motor Oil For both gasoline and diesel engines. Offers multi-functionality. Ideal where the extra protection of a higher-viscosity oil is desired.

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AMSOIL’s first Synthetic The AMR 10W-40 High Zinc Still Available

This product still have demand! It fills the need for several vehicle groups. A very robust high zinc or ZDDP for all the protection available for a motor oil. It meets the most common diesel specifications up to just recently so most diesel pickups and equipment this may be a better option than your typical 15W-40 (check the data sheet for specifications).

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AMSOIL’s first! America’s first API Rated 10W-40 Synthetic

The 10W-40 synthetic that started an industry!  It’s designed 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. As it is a 100% synthetic

PRODUCT DESCRIPTION

AMSOIL Premium Protection Synthetic Motor Oil is formulated to provide superior protection and performance, hence it’s use in a wide variety of demanding applications. Subsequently true synthetic base stocks and a superior additive package yields a formulation that exceeds the requirements of most applications. This 10W-40 synthetic motor oil is great for high-mileage vehicles which include ones under high-stress, subject to hot temperatures, heavy hauling, trailer pulling or off-road use. Furthermore the formulation results in extra anti-wear protection needed by engines with flat-tappet cams and high-tension valve springs. Because AMSOIL Premium Protection 10W-40 Synthetic Motor Oil offers flexibility and performance beyond conventional oils, it remains a convenient standard for trouble-free operation.

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Devoted to 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.

Superior Wear Protection

AMSOIL Premium Protection 10W-40 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 10W-40 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

The secrete is built into the formulation to overcome thermal deficiencies.
Volatilization (burn-off), oxidation and excessive deposit formation from high heat are greatly reduced. Viscosity thickening is controlled hence engines run cleaner, promoting cool operation extending engine life in air or liquid-cooled engines.

Extends Drain Intervals in Gasoline and Diesel Engine

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. It virtually restores performance in your vehicles as you drive. Premium additive packages only because AMSOIL is devoted to our customers therefore you get something from this oil not available from others!

AMO’s 10W-40 Applicartions

The list below contains the specifications which the AMSOIL Premium Protection 10W-40 Synthetic can be used.  It’s perfect for air and liquid-cooled, large or small gasoline and diesel engines, transmissions and chaincase applications where 10W-40 oils are required.

  • 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

 

MIXING AMSOIL

AMSOIL Synthetic 10W-40 Synthetic 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. Consequently mixing this with other products or viscosities you can kiss the extended drain intervals goodbye! Aftermarket oil additives are not recommended for use with AMSOIL Synthetic Oils. (Not wise).

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

Call to order

1-800-579-0580

OIL ANALYZERS INC., 715-395-0222, is a division of AMSOIL that provides cost-effective, quality oil analysis services. For more information on product applications and service life, refer to the AMSOIL Product Recommendation and Drain Interval Guide (G1490).

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AMSOIL PRODUCT WARRANTY

A Limited Liability Warranty is part of every AMSOIL product. View the warranty at: www.amsoil.com/warranty.aspx.

AMO 10W-40 Reviews

 

AMSOIL Premium Protection 10W-40 100% Synthetic Motor Oil

By  Eugene,  a  Verified Buyer  from  Brooklyn, NY  on  May 14, 2024
Excellent quality oil. AMSOIL the best. Engine working smooth, quiet.

GatorTail XD 40

By  ALEX,  a  Verified Buyer  from  MS  on  March 07, 2024
Great engine oil, highly recommended and will buy again for my surface drive engine.

Great Oil

By  Targa Eng,  a  Verified Buyer  from  Florida  on  February 13, 2024
Been using this for many years in older air cooled flat tappet Porsche engines. Does well on the track and retains good test sample numbers for surprisingly long drain intervals.

Marine Application

By  WILLIAM,  a  Verified Buyer  from  Lake of the Ozarks  on  November 11, 2023
I have been using this product in the 5.7 Liter Engine of my 2002 Crownline 225 boat for well over a decade. The boat stays on a lift so always exposed to a high moisture environment. I take pride in how great my 20 year old boat looks. With Amsoil, it runs as good as it looks!

Great oil

By  RICHARD,  a  Verified Buyer  from  Florida  on  April 14, 2023
Very happy with the oil. I use it in my 1991 Corvette Zr-1. I appreciate the extra engine protection features.