Best Oil Money Can Buy

Best Oil Money Can Buy

AMSOIL Synthetic Heavy-Duty Diesel & Marine Motor Oil SAE 15W-40 (AME)

Engineered for all types of pre 2007 diesel engines with an emphasis on modern, low emission heavy duty diesel engines. High 12 total base number (TBN) controls acids from combustion blow-by and EGR. High levels of detergency and discrepancy additives control soot thickening, oxidation and wear. Resists bore polishing, deposit formation and ring sticking. Provides clean engine performance. Extended drain capabilities reduce downtime and motor oil expenses.

AMSOIL Synthetic Heavy-Duty Diesel & Marine Motor Oil SAE 15W-40 (AME)Package sizes include: 1-Quart Bottle, 1-Quart Bottles (case of 12), 1-Gallon Bottle, 1-Gallon Bottles (case of 4), 2.5-Gallon Bottle, 2.5-Gallon Bottles (case of 2), 30-Gallon Drum, 55-Gallon Drum, 275-gallon tote or bulk shipments.


AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME) is a premium diesel oil providing excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Built with heavy-duty dispersant/detergent additives, its 12 TBN chemistry neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. AMSOIL 15W-40 Diesel Oil resists heat and breakdown better than conventional petroleum oils for long lasting, performance and protection. We have personally validated the use of Amsoil with thousands of oil samples! We have extended drain intervals up to 6 times longer than manufactured requirements on heavy equipment with excellent results!

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 Synthetic Heavy Duty Diesel & Marine Motor Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long-drain additive system deliver maximum engine protection, cleanliness and performance over extended drain intervals (up to 3x times with warranty), reducing vehicle maintenance and waste oil disposal costs. Amsoil products will improve your bottom line by reducing the frequency of your downtime while maximizing reliability and up time!

Advanced Soot and Wear Control Formula

AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is heavily fortified with detergent/dispersant additives and is naturally resistant to soot. It is designed to keep soot particles suspended independently and prevent them from attaching together to form larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled.

Maximizes Fuel Economy, Reduces Oil Consumption and Emissions

AMSOIL Diesel & Marine Motor Oil has lower volatility (evaporation) than con-ventional petroleum oils. Because less oil vapor passes into the combustion chamber, oil consumption and emissions are reduced. Lower volatility helps AMSOIL 15W-40 Diesel Oil retain its viscosity after high-temperature service for excellent fuel economy and continued dependable protection.

Excellent Cold Flow Properties

AMSOIL AME remains fluid down to -44°F. It eases cold-weather starting and provides vital start-up lubrication to prevent engine wear. AMSOIL Synthetic Heavy Duty Diesel Oil outperforms conventional 15W-40 petroleum oils and greatly minimizes the impact of cold weather operation.


is engineered for use in a wide variety of light and heavy-duty applications, including over-the-road trucks, off-road construction, marine engines, farm equipment, mining, industrial (pumps & generators) and personal automotive or commercial transportation. It is excellent for use with low- or high-sulfur diesel fuels in standard, turbocharged or supercharged engines, including modern low-emission diesels such as those equipped with EGR systems.

AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is recommended for diesel engines, gasoline engines and other applications that require any of the following worldwide specifi cations:

  • SAE 15W-40
  • API CI-4+, CF, CF-2, SL, SJ
  • ACEA A3/B3, E2, E3, E5, E7
  • Global DHD-1
  • JASO DH-1
  • Mack EO-M+ EO-N Premium Plus ’03
  • DDC Power Guard 93K214
  • Caterpillar ECF-1A, ECF-2
  • Cummins CES 20071, 20072, 20076, 20077, 20078
  • Volvo VDS-2, VDS-3
  • MB 228.1, 228.3, 229.1
  • MAN 271/3275
  • MTU Type 2
  • Allison C-4

See detailed product information, pricing and place an order.

FOR 2013 OFF ROAD ENGINES EQUIPPED WITH DPF’s  Use AMSOIL API CK-4 oils, they are designed and manufactured to meet the most demanding requirements! For a listing of all DIESEL OILS click here to order!


AMSOIL AME 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 motor oils.


AMSOIL Synthetic 15W-40 Heavy Duty Diesel and Marine Motor Oil (AME) is recommended for extended drain intervals in engines that are unmodified and in good operating condition.

Diesel Engine Service

  • Three times (3X) OEM* recommendation
  • Not to exceed 50,000 miles/600 hours or one year, whichever comes first.
  • Drain intervals may be extended further with oil analysis.



Synthetic Powershift Transmission Fluid SAE 30 (CTJ)

Advanced Formulation for Powershift and Manual Transmissions, Wet Brakes and Final Drives


AMSOIL Synthetic Powershift Transmission Fluids are specifically designed for high-torque heavy-duty power trains & power-shift transmissions (specifically Cat requiring TO-4). Formulated for extended drain intervals 3X, Power-shift Transmission Fluids contain top-quality synthetic base stocks and a high level of top-quality additives selected specifically for power-shift transmissions. They offer exceptional transmission friction performance, smooth brake operation, reduced gear and bearing wear and increased equipment life, easier start ups during cold weather (no need to switch to a lower viscosity oil during winter months because of the low pour points).

Package sizes include: 5-Gallon Pail, 55-Gallon Drum

(Also see SAE 10W and SAE 50 Powershift Transmission Fluid)


See detailed product information, pricing and place an order 


Synthetic Anti-Wear Hydraulic Oils

ISO 15, 22, 32, 46, 68 (AW)
Protects hard-working hydraulic systems from the stress of high-pressure, high-load and heavy-duty operations. Remains fluid in cold temperatures for immediate cold-weather flow. Special anti-wear additives and rust inhibitors provide optimum protection to expensive equipment.

Package sizes include: 5-Gallon Pail, 30-Gallon Drum, and 55-Gallon Drum


AMSOIL Synthetic AW Series Antiwear Hydraulic Oils are shear-stable, long-life lubricants based on high-quality synthetic oil technology. These oils are formulated with a premium additive system that inhibits oxidation to help prevent acid formation and viscosity increase and inhibit rust and foam (providing smooth hydraulic operation). AW Oils contain a very effective zinc-based anti-wear/antioxidant additive which controls wear in high-speed, high-pressure vane and gear pumps while meeting the lubrication requirements of axial piston pumps with bronze-on-steel metallurgy. AW Oils meet the requirements for Maximum Efficiency Hydraulic Fluid (mehf) and can lower costs and/or increase productivity in mobile equipment by 6 to 15 percent. Improved pump efficiency can increase hydraulic power, reduce fuel consumption and improve productivity. AW Oils are designed for long life and typically reduce maintenance costs by extending drain intervals and reducing labor costs, repairs and downtime.

See detailed product information, pricing and place an order.


Long Life Synthetic Gear LubeSAE 75W-90 (FGR)

AMSOIL Gear Lube OilSpecifically engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Protects against wear and improves equipment life. Excellent “All Season” summer and winter performance. Outperforms all conventional gear oils. See gear performance test. Compatible with most limited-slip differentials.

Package sizes include: 1-Quart Bottle,,1-Quart Bottles (case of 12), 1-Gallon Bottle, 1-Gallon Bottles (case of 4), 5-Gallon Pail, 16-Gallon Keg, 30-Gallon Drum, 55-Gallon Drum


AMSOIL Long Life Synthetic Gear Lubes are extended drain gear lubes engineered specifically to last several times longer and protect gears better than all conventional gear oils. These exclusive AMSOIL formulations of premium synthetic base oils and high performance additives resist acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lubes are shear stable and friction reducing. They maintain their viscosity during extended service for maximum wear control and they are fuel-efficient. The superior cold temperature fluidity and high temperature stability properties of AMSOIL Long Life Synthetic Gear Lubes make them excellent for all-season use. Equipment lasts longer and maintenance costs are reduced with AMSOIL Long Life Synthetic Gear Lubes.


AMSOIL Polymeric GreaseAMSOIL Synthetic Polymeric Off-Road Grease (GPOR2)

(NLGI #2 – 5% Moly)

NLGI #1 for colder temperatures and as an all-season lubricant in northern climates, NLGI #2 for warmer temperature or as an all season lubricant, or as required by OEM (Original Equipment Manufacturer).

Package sizes include: 15-oz. Cartridge, 15-oz. Cartridges (case of 10), 15-oz. Cartridges (case of 40), 35-lb. Pail, 120-lb. Keg, 400-lb. Drum


AMSOIL Synthetic Polymeric Off-Road Grease (GPOR1, GPOR2) combines an over-based calcium-sulfonate complex thickener and proprietary synthetic polymeric technology to provide outstanding performance in heavy duty off-road applications.

AMSOIL developed an exclusive synthetic polymeric system custom-built to provide performance benefits specific to off-road equipment. This synthetic technology helps give AMSOIL Off-Road Grease tenacious cling ability and maximum pound-out resistance over extended service intervals, even in wet environments.

Check out Amsoil heavy duty products click here.