AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil
Premium Diesel Oil for Pre-2007 Over-the-Road Diesel Trucks
and All Marine Engines, Farm and Industrial Equipment
Controls Soot Loading from Exhaust Gas Recirculation Systems and Blowby
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AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil is a premium diesel oil engineered for pre-2007 over-the-road diesel truck engines as well as all model year diesel engines in off-road applications. It has been put to the test over millions of miles in heavy-duty trucks. It is proven to provide unsurpassed engine protection, even when used much longer than conventional diesel oils are used.
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil provides clean engine performance. Built with heavy-duty dispersant/detergent additives, its high 12-TBN chemistry neutralizes acids and controls soot loading from exhaust gas recirculation (EGR) and blow-by to protect against corrosion, cylinder bore polishing (wear), ring sticking and varnish and sludge deposits. AMSOIL 15w40 Diesel Marine Oil resists heat and breakdown better than conventional petroleum oils for long lasting performance and protection. Extended oil change intervals reduce downtime, motor oil expenses and waste oil disposal costs.
- Contains 12 TBN for long-term acid control and a stay-in-grade formulation
- Maximizes diesel fuel economy
- Reduces oil consumption and emissions
- Resistant to soot
- Resists varnish and sludge formation
- Excels in both hot and cold weather extremes, eliminating the need for seasonal oils
- Dissipates foam for better fuel injection and engine power
- Ideal for mixed fleets — formulated for both gasoline and diesel engines
- Extended oil change intervals
- Product Code/Price
- Product Details
- Shipping Info/Return Policy
| AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil | |
|---|---|
Product Code |
Pkg./Size |
| AMEQT-EA | Quart Bottle |
| AMEQT-CA | Quart Bottles (case of 12) |
| AME1G-EA | Gallon Bottle |
| AME1G-CA | Gallon Bottles (case of 4) |
| AMETP-EA | 2.5-Gallon Bottle |
| AMETP-CA | 2.5-Gallon Bottle (case of 2) |
| AME30-EA | 30-Gallon Drum |
| AME55-EA | 55-Gallon Drum |
| AME27-EA | 275-Gallon Tote |
| Wholesale prices available for retail and commercial accounts. Please call 1-877-331-4642 or e-mail info@superoilcentral.com for more information. |
|
Offers Better Fuel Economy, Reduces Oil Consumption and Emissions
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil has lower volatility (evaporation) than conventional petroleum oils. Lower volatility means AMSOIL 15w40 Diesel Marine Oil retains its viscosity at temperatures and loads that break down conventional oils, offering better fuel economy and continued dependable protection. Lower volatility also means less make-up oil is required to replace volatilized oil and less oil vapor gets into the combustion chamber, reducing oil consumption and exhaust emissions.
Controls Excessive Soot Loading Found in EGR Diesel Engines
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil is heavily fortified with detergent/dispersant additives and is naturally resistant to soot. It is designed to keep soot particles suspended independently, preventing them from attaching together to form larger, wear-causing particles. Viscosity increase is minimized and soot-related diesel engine wear is controlled.
Excels in Cold Weather
Unlike conventional petroleum oils, AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil contains no wax. It stays fluid down to -44°F for improved cold-temperature oil flow, providing vital start-up lubrication for easier starts and reduced wear. AMSOIL 15w40 Diesel Marine Oil outperforms conventional 15w40 petroleum oils and greatly minimizes the impact of cold weather operation.
All-Season Oil — Eliminates the Need for Special Inventories of Seasonal Oils
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil will not shear back to a lower viscosity. This is especially important for engines that operate continually at constant speed, such as stationary engines, marine engines and farm tractors. Traditionally, such engines have been lubricated with high-viscosity single-grade oils, such as SAE 40, to avoid oil shear-back (which sometimes occurs with multi-viscosity oils using low-quality viscosity index improvers). However, single-grade oils are too thick to allow easy starting and quick engine lubrication in cold temperatures. AMSOIL 15w40 Diesel Marine Oil provides the high-temperature protection of an SAE 40 and the low-temperature pumpability of a 15W oil throughout its entire service life. All-season, all-temperature AMSOIL 15w40 Diesel Marine Oil eliminates the need for special inventories of seasonal oils.
Prevents Rust and Corrosion — Important to Marine Engines and Farm Equipment
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil contains special rust and corrosion inhibitors that protect engines from internal rust, which is especially important for marine engines or equipment that is stored long-term, such as farm equipment.
Less Foam Means Better Drivability
Some vehicles have been known to suffer drive-ability problems due to oil foaming. Foamy oil interferes with fuel injection, which reduces engine power. The ASTM D892 Foam Test, Sequences 2 and 4, are used to evaluate diesel oils on their foaming characteristics.
According to test results, AMSOIL Synthetic Diesel Oils are clearly less prone to foaming (see graph). Not only are AMSOIL Synthetic Diesels Oils less prone to foaming, they also dissipate foam more quickly and excel in comparison to Shell Rotella T, a popular diesel oil often recommended by some engine manufacturers.
Outstanding All-Fleet Performance (Diesel and Gasoline Engines)
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil exceeds the performance specifications of all major American and European truck manufacturers. Though it is designed for diesel engines, it may also be used in gasoline engines, so separate oils for diesel and gasoline powered equipment or vehicles are not needed.
Extended Oil Change Intervals
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine Oil is a proven long-drain oil and can extend oil change intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long-drain additive system delivers maximum engine protection, cleanliness and performance over extended oil drain intervals, reducing vehicle maintenance and waste oil disposal costs. AMSOIL 15w40 Diesel Marine Motor Oil is recommended for extended oil change intervals in unmodified, mechanically sound vehicles or equipment as follows:
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.
Gasoline Engine Service:
Two times 2(X) OEM* recommendation, not to exceed 15,000 miles or one year, whichever comes first.
*Original Equipment Manufacturer. Operating conditions and drain intervals for severe and normal service are defined by the OEM. Refer to your owner's manual.
Note: extended oil drain intervals are not recommended when using biofuels containing >10% ethanol or 5% biodiesel (B5). Follow OEM drain intervals or extend drain intervals with oil analysis.
Oil Filter Service Intervals
Extended oil change intervals are based on the user following AMSOIL recommended oil filter service intervals. Install a new oil filter at time of oil change.
- AMSOIL Ea Oil Filters and Donaldson Endurance Oil Filters are full flow oil filters designed for extended oil drain intervals. They stop smaller particles, have less restriction and last longer than regular oil filters. For best performance, use AMSOIL Ea or Donaldson Endurance oil filters. If using other brands of oil filters, install a new oil filter at time of oil change then change at the OEM's (original engine manufacturer) recommended filter change intervals.
- For maximum engine and oil life, AMSOIL Ea Bypass Oil Filters are specialized for the removal of small, wear-causing dirt particles. These filters are placed outside the main line of oil circulation, using an AMSOIL Bypass Oil Filtration System mount.
- Please visit our Oil Filter page to see all of these products and more.
Good to Know
- For best results, use AMSOIL Engine and Transmission Flush before installing AMSOIL synthetic motor oil.
- For maximum engine protection, use an AMSOIL Ea Oil Filter and an AMSOIL Ea Air Filter.
- AMSOIL recommends checking the oil at a minimum of every 3,000 miles to maintain proper fill levels and maximum engine protection.
- Oil Analyzers, Inc., a division of AMSOIL, Inc., provides cost effective, quality oil analysis services.
- Most quick lube service centers will install these products upon request or install them yourself.
Applications
AMSOIL Heavy Duty 15w40 Synthetic Diesel Marine 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, logging and mining equipment and industrial (pumps & generators). It is ideal for personal automotive or commercial transportation, such as taxi and local delivery fleets, with gasoline or diesel engines. 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 exhaust gas recirculation systems (EGR). AMSOIL 15w40 Diesel Marine Oil is excellent for use in diesel and gasoline engines, including those under warranty, and other applications requiring the worldwide performance specifications listed on the AMSOIL Corporate website (see "Engine Protection Requirements" below).
Engine Protection Requirements
AMSOIL Synthetic Motor Oils meet or exceed specific API, ACEA and ILSAC service classifications and the engine protection requirements of various domestic and foreign engine manufacturers. Please visit the AMSOIL Corporate website for an up-to-date listing on AMSOIL 15w40 Heavy-Duty Diesel Marine Oil.
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