Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 15W-40 Diesel Oil is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines. Built with the latest additive and synthetic base oil technology, AMSOIL Premium Synthetic SAE 15W-40 Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear. Extended drain interval recommendations: three times (3X) OEM recommendation, not to exceed 50,000 miles/600 hours or one year, whichever comes first for diesel engines; two times (2X) OEM recommendation, not to exceed 15,000 miles or one year, whichever comes first, for gasoline engines. Drain intervals may be extended further with oil analysis.
Premium API CJ-4 Synthetic 15W-40 Diesel Oil
Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines
The premium choice diesel oil for model-year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission-quality oil standards. Delivers extraordinary lubrication in diesel engines in commercial, fleet and personal applications. Exceeds modern specs for emission-quality diesel oil.
Package sizes include:
AMSOIL 15W-40 Synthetic Diesel Oil is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines, as well as older diesel applications (including those equipped with turbochargers). It delivers extraordinary lubrication in diesel engines found in commercial, fleet and personal vehicles. Formulated with the latest additive and synthetic base oil technology, AMSOIL Premium 15W-40 Synthetic Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear.
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.
Meets Emission System Requirements
AMSOIL 15W-40 Synthetic Diesel Oil is a low-sulfated ash formulation that meets the requirements for low-emission quality diesel oil and protects under the most severe conditions found in modern diesel engines. It is compatible with all exhaust treatment devices and is designed for engines equipped with diesel particulate filters (DPF).
Extended Drain Performance
AMSOIL Premium 15W-40 Synthetic Diesel Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long-drain additive system (10.4 TBN) deliver superior engine protection, cleanliness and performance over extended drain intervals. AMSOIL 15W-40 Synthetic Diesel Oil provides maximum protection for up to 3X the OEM-recommended drain interval, even further with oil analysis.
Controls Soot-Thickening and Wear
The advanced synthetic base oils in AMSOIL 15W-40 Synthetic Diesel Oil are naturally resistant to soot contamination and oxidative thickening. That, along with a heavy fortification of detergent/dispersant additives, keeps soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled.
Superior Shear Stability, Reduced Oil Consumption
AMSOIL 15W-40 Synthetic Diesel Oil has lower volatility (burn-off) than conventional petroleum oils, resulting in less oil vapor passing into the combustion chamber, lowering oil consumption and emissions. Lower volatility helps AMSOIL Premium Synthetic Diesel Oil retain its viscosity after high-temperature service for continued dependable protection.
Ideal for Fleets
AMSOIL Premium 15W-40 Diesel Oil reduces operating costs through extended drain intervals. It is engineered for a wide range of applications, allowing fleet operators to consolidate engine oil inventories in mixed fleets. In addition, it reduces downtime through extended drain intervals and improved equipment protection.
AMSOIL 15W-40 Diesel Oil
costs less per mile than conventional oil
Fleet Savings vs. Conventional 15W-40
Total Lubricant Used
Cost Per Gallon
Total Lubricant Cost x1 Truck
Total Lubricant Cost x50 Trucks
8 gal x12=96 gal
|AMSOIL Synthetic 15W-40|
8 gal x4=32 gal
|Total Savings With AMSOIL|
|Based on 120,000 miles per year with an OEM-recommended drain interval of 10,000 miles. Does not include labor, filter, or used oil disposal costs, making AMSOIL even more cost effective. Pricing samples are average suggested retail, October/November 2014.|
AMSOIL Premium CJ-4 Synthetic 15W-40 Diesel Oil is recommended for diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:
AMSOIL 15W-40 Synthetic Diesel Oil 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 Premium CJ-4 15W-40 Synthetic Diesel Oil is recommended for extended drain intervals in engines that are unmodified and in good operating condition.
Diesel Engine Service
Gasoline Engine Service
*Operating conditions and drain intervals for normal and severe service are defined by the OEM. Refer to your owner’s manual.
Note: Extended 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.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.
For warranty information, visit www.amsoil.com/warranty.aspx.
TYPICAL TECHNICAL PROPERTIES
AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil (DME)
|Kinematic Viscosity @ 100°C, cSt (ASTM D-445)|
|Kinematic Viscosity @ 40°C, cSt (ASTM D-445)|
|Viscosity Index (ASTM D-2270)|
|CCS Viscosity @ -20°C, cP (ASTM D-5293)|
|Flash Point °C (°F) (ASTM D-92)|
|Fire Point °C (°F) (ASTM D-92)|
|Pour Point °C (°F) (ASTM D-97)|
|Noack Volatility (DIN 51581) 250°C for 1 hour, % weight loss|
|Four-Ball Wear Test @ 40kgf, 75°C, 1200 rpm, 1 hr Scar,mm (ASTM D-4172)|
|Total Base Number|
|High Temperature/High Shear Viscosity, cP (ASTM D5481)|
|Sulfated Ash Content, wt. %|
DME Packaging Information
|Code||Package Size||Unit of Measure||Product|
|DMEQT (DMEQT-EA)||Quart||Each||Premium 15W-40 Synthetic Diesel Oil|
|DMEQT (DMEQT-CA)||Quart||Case of 12||Premium 15W-40 Synthetic Diesel Oil|
|DME1G (DME1G-EA)||Gallon||Each||Premium 15W-40 Synthetic Diesel Oil|
|DME1G (DME1G-CA)||Gallon||Case of 4||Premium 15W-40 Synthetic Diesel Oil|
|DMETP (DMETP-EA)||2.5-Gallon||Each||Premium 15W-40 Synthetic Diesel Oil|
|DMETP (DMETP-CA)||2.5-Gallon||Case of 2||Premium 15W-40 Synthetic Diesel Oil|
|DME30 (DME30-EA)||30-Gallon Drum||Each||Premium 15W-40 Synthetic Diesel Oil|
|DME55 (DME55-EA)||55-Gallon Drum||Each||Premium 15W-40 Synthetic Diesel Oil|
|DME27 (DME27-EA)||275-Gallon Tote||Each||Premium 15W-40 Synthetic Diesel Oil|