Synthetic Heavy-Duty Diesel
and Marine Motor Oil
SAE 15W-40
Custom-Blended For Outstanding
Performance In Today's Engines
 AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil combines the superior lubricity and performance capabilities of a premium synthetic lubricant with special rust and corrosion inhibitors. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil is recommended for engines used in marine applications, as well as diesel engines used in trucks, fleets, mining, earth moving, construction and farm equipment. Other applications include taxi and local delivery fleets with gasoline or diesel engines. With its extended drain intervals, AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil reduces maintenance costs, downtime and the cost of waste oil disposal.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil surpasses the European ACEA and North American SAE oil specifications for high temperature/high shear (HTHS) viscosity. It is significantly more shear stable than conventional motor oils, retaining its viscosity at temperatures and loads that break down conventional oils. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil maintains an extremely protective viscosity of greater than 3.7 cP at 302 deg. F (150 deg. C) in the ASTM D-4683 High Temperature/High Shear Test, exceeding the test limits.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil contains special rust and corrosion-inhibiting additives to prevent the rusting or corrosion of iron, copper, lead and aluminum materials.
The premium quality synthetic base stocks in AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil provide a tough lubricating film on all engine parts, reducing friction and fuel consumption. Reduced fuel consumption reduces exhaust emissions of carbon dioxide, water and particulates.
Conventional oils oxidize at high temperatures, causing sludge and deposit build-up that decrease fuel efficiency and contribute to corrosion and increased engine wear. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil, with a flash point of 453 deg. F (234 deg. C), resists oxidation and thermal breakdown far better than conventional oils. It continues to provide maximum protection at temperatures that oxidize conventional oils. Also, the advanced heat transfer capabilities and high lubricity of AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil helps engines run cooler and reduces wear.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil is formulated for extended drain intervals. Its unique synthetic formulation, improved detergent/dispersant capabilities, and long drain additive package ensure maximum engine protection, cleanliness and performance over extended drain periods. Its advanced 12 TBN formulation keeps engines in superb condition even when the oil is used for extended drain intervals.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil remains fluid at temperatures as low as –47 deg. F (-44 deg. C). It circulates rapidly to provide vital lubrication and prevent engine wear caused by lack of oil flow. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil allows quicker, easier cold temperature starting with less engine wear.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil far exceeds the NOACK Volatility Test. Many conventional lubricants cannot pass this requirement. Low volatility means less oil vapor passing into the combustion chamber. A reduction of oil vapor means lower oil consumption and lower exhaust emissions. The high detergent alkalinity of AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil also helps reduce oil consumption.
AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil is designed to meet or exceed the following engine requirements:
- API Engine Service CI-4+, CF, CF-2, SL
- ACEA A3/B3, E2, E3, E5, E7
- Global DHD-1
- JASO DH-1
- DDC Power Guard 93K214
- Caterpillar ECF-1A, ECF-2
- Mack EO-N Premium Plus '03
- M.A.N. 271/3275
- MB 228.3, 229.1
- Volvo VDS, VDS-2
- Cummins CES 20071, 20072, 20076, 20077, 20078
- MTU Type 2
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AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil is compatible with conventional petroleum oils and other synthetic oils; however, mixing AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil with a conventional oil will shorten the extended drain period of AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil. Engine oil additives or after-market products are not recommended for use with AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil.
The use of AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil will not void new vehicle warranties. New vehicle warranties are based on the use of oils meeting specific API service classifications and SAE viscosity grades. AMSOIL Synthetic Heavy-Duty Diesel and Marine Motor Oil meets the current API and SAE requirements and is perfectly suited for use in any new vehicle stipulating those requirements in its owner’s manual.
Personal passenger vehicles with gasoline engines: drain oil at intervals up to three times as long as those recommended by the engine manufacturer or at one-year intervals, whichever comes first.
Turbocharged gasoline engines: drain oil at intervals up to twice as long as those recommended by the engine manufacturer or at six-month intervals, whichever comes first.
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High performance and racing engines: drain oil at engine manufacturer’s recommended drain intervals.
Light-duty and nonturbocharged diesel engines: drain oil at intervals up to twice as long as engine manufacturer’s recommended drain intervals when used oil analysis supports these longer drain intervals or at six-month intervals.
Heavy-duty and turbocharged diesel engines: drain oil at intervals up to twice as long as engine manufacturer’s recommended drain intervals when used oil analysis supports these longer drain intervals or at six-month intervals.
Motorcycles, ATVs, etc.: use engine manufacturer’s recommended drain interval.
Marine craft and occasionally used gasoline engines: drain oil at intervals up to three times as long as those recommended by the engine manufacturer or at one-year intervals, whichever comes first.
Gasoline fleet vehicles and industrial engines: drain oil at intervals up to three times the engine manufacturer’s recommended drain intervals or at six-month intervals, whichever comes first.
AMSOIL INC. warrants that the use of its products will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with AMSOIL INC, recommendations.
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