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Marine Diesel Engines

How to Increase Fuel Efficiency, Get Longer Engine Life, and Reduce Maintenance Costs

Synthetic Heavy Duty Marine Diesel Motor Oil SAE 15W40

Heavy Duty Marine Diesel Motor Oil 15W40 reduces wear, extends engine life, for all Marine Diesel Boat Engines
See prices or place an Order in the AMSOIL Online Store.
"The best oil you can buy for your boat."

  • Superior Protection Against Wear
  • Longer Engine Life
  • Excellent Rust Protection
  • Maximizes Fuel Economy
  • Excels in Both High Horsepower Applications and
    All-Day Cruising or Trolling Conditions
  • Extended Oil Change Intervals
  • Reduced Operating Costs

AMSOIL Marine Products Brochure (PDF)

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

PRODUCT DESCRIPTION
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME) is a premium diesel engine 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 AME resists heat and breakdown better than conventional marine oils to provide long lasting performance and protection for your boat.

AMSOIL AME retains its viscosity (avoids thickening) after long term high temperature service to provide excellent fuel economy and continued dependable protection.

AMSOIL, the leader in synthetic lubrication, produced the world's first API qualified synthetic motor oil in 1972. You can trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your boat engine.

Diesel Concentrate Increases Fuel Economy and restores horsepower in marine diesel engines.Diesel Fuel Additive

Improves Fuel Economy Up to 5%

Restores Horsepower
to Like New

Cleans entire fuel system

Extends injector life

Protects against water contamination

See prices or place an Order in the AMSOIL Online Store.

Extends Drain Intervals
AMSOIL AME can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long drain additive system deliver the best possible marine engine protection, cleanliness and performance over extended drain intervals, reducing vehicle maintenance and waste oil disposal costs.

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 keeps soot particles suspended independently, preventing 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 AME has lower high temperature volatility (evaporation) than conventional petroleum oils. Because less oil is vaporized, oil consumption and emissions are reduced. Lower volatility helps AMSOIL AME retain its viscosity after high temperature service for excellent fuel economy and continued dependable protection for your boat engine.

High Performance Marine Gear Oil

Synthetic Marine Gear Lube SAE 75W/80W-90 for boat outboard lower unit, stern drive, v drive, bow and tunnel thruster, and marine transmissionExcellent Gear and Bearing Protection even when contaminated with 10% water

Reduced Friction and Wear

Excellent Rust and Corrosion Protection

Long Seal Life

Superior Foam Prevention

See prices or place an Order in the AMSOIL Online Store. 

Excellent Cold Flow Properties

AMSOIL AME remains fluid down to -51°F. It eases cold weather starting and provides vital startup lubrication to prevent engine wear. AME outperforms conventional 15W-40 petroleum oils and greatly minimizes the impact of cold weather operation.

APPLICATIONS
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil 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 use in diesel engines and other applications requiring any of the listed worldwide specifications and gasoline engines requiring API SL, SJ, SH or ACEA, A3.

 

  • Marine Dual Remote Filtration System
    Dramatically Extends Engine Life
    Marine By Pass Oil Filters extends boat engine and oil life, reduces maintenance costs.

    API CI4+, CF, CF2, SL
  • ACEA A3 / B3, E2, E3, E5
  • Global DHD1
  • JASO DH-1
  • Mack EON Premium Plus '03
  • DDC Power Guard 93K214
  • Caterpillar ECF1
  • Cummins CES 20071, 20072, 20076, 20077, 20078
  • Volvo VDS2, VDS3
  • MB 228.1, 228.3, 229.1
  • MAN 271 / 3275
  • MTU Type 2
  • MIL-PRF-2104G
  • Allison C4

 

MIXING AMSOIL
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.

SERVICE LIFE
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) vehicles or equipment as follows:

Commercial or Fleet Vehicles, Long-Haul Trucks, Marine Craft, RV, Off-Road Equipment

Non-EGR equipped diesels -- extend drain intervals up to two times (2X) the OEM* recommended drain interval or one year, whichever comes first, or longer based on oil analysis.

EGR equipped or low emission diesels -- extend drain intervals based on oil analysis or use the OEM* recommended interval.

Replace Donaldson Endurance™ or AMSOIL Ea™ full flow oil filters at the time of oil change up to two times (2X) longer than the OEM* standard interval, not to exceed 60,000 miles in long-haul trucks.

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.

Replace AMSOIL Ea™ full flow oil filter or Donaldson Endurance™ ELF 7349 at the time of oil change up to 25,000 miles (other brands at standard OEM* intervals).

AMSOIL Ea™ and Donaldson Endurance™ full flow oil filters are designed for extended drain intervals. They stop smaller particles, have less restriction and last longer than regular filters. For best performance, use AMSOIL Ea or Donaldson Endurance oil filters. AMSOIL by-pass oil filters are specialized for the removal of small, wear-causing dirt particles, thereby extending engine life. AMSOIL encourages using an AMSOIL bypass filter system for maximum engine and oil life.

Oil Analyzers Inc., 715-395-0222, is a division of AMSOIL that provides cost effective, quality oil analysis services.

Below: Noack Volatility, % weight loss (g/100g)
Marine 15W40 Motor Oil Noack Chart

 

TYPICAL TECHNICAL PROPERTIES

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

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)

14.4

Kinematic Viscosity @ 40°C, cSt (ASTM D-445)

90.8

Viscosity Index (ASTM D-2270)

164

CCS Viscosity @ -20°C, cP (ASTM D-2602)

3574

Pour Point °C (°F) (ASTM D-97)

-46 (-51)

Flash Point °C (°F) (ASTM D-92)

236 (457)

Four Ball Wear Test (ASTM D-4172B: 40 kg, 75°C, 1200 rpm, 1 hour), Scar, mm

0.35

Noack Volatility, % weight loss (g/100g) (ASTM D-5800)

6.8

High Temperature/High Shear Viscosity
(ASTM D-4683 @ 150°C, 1.0 X 106 s.-1, cP

4.3

Total Base Number

12.2

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MPG Performance is dedicated to providing you with the best high performance products that increase gas mileage, diesel fuel mileage, horsepower, and reduce maintenance costs for all auto, truck, diesel, SUV, motorcycle, boat, and ATV applications. We have the best synthetic motor oil, heavy duty diesel oil, marine motor oil, synthetic motorcycle oil, 2 stroke and 4 stroke racing oil, transmission fluid, synthetic gear oils, NGK spark plugs & wires, and the most complete line of advanced performance air filters and oil filters, Including high performance diesel air intake systems.

Our Maximum Fuel Economy section shows you how to get better gas mileage (or diesel MPG) and get more horsepower. We have combined race proven performance products and sound fuel efficiency methods into a complete program to help you get more horsepower and better gas mileage. This fuel saving program also helps the environment. It will reduce your vehicle's exhaust emissions and pollution which can help fight global warming.

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Consult the AMSOIL Online Product Application Guide and your owners manual for service recommendations.
Your results will vary depending on the mechanical and operating conditions of your vehicle.

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