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AMSOIL MOTOR OILS (10,000 miles / 6-month)

AMSOIL OE MOTOR OILS (OEM drain intervals)

AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEO)

AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil (DME)

Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 15W-40 Diesel Oil (DME) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines.

See Retail Pricing Information OR Request a Quote From Us

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 (twin pack)
30-Gallon Drum
55-Gallon Drum

DMEQT-EA : 1-Quart Bottle
DME1G-EA : 1-Gallon Bottle
DMETP-EA : 2.5-Gallon Bottle
DMEQT-CA : 1-Quart Bottles (case of 12)
DME1G-CA : 1-Gallon Bottles (Case of 4)
DMETP-CA : 2.5-Gallon Bottles (case of 2)
DME55-EA : 55-Gallon Drum
DME27-EA : 270-Gallon Tote

AMSOIL Synthetic 15W-40 Diesel Oil (DME) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines. It delivers extraordinary lubrication in diesel engines found in commercial, fleet and personal vehicles. Built with the latest additive and synthetic base oil technology, AMSOIL Premium Synthetic 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. 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.

Exceeds Emission System Requirements
AMSOIL Synthetic 15W-40 Diesel Oil is a low-sulfated ash formulation that provides excellent performance in low-emission diesel engines. It is compatible with all exhaust treatment devices and is designed to extend the service life of diesel particulate filters (DPF).

Extended Drain Performance
AMSOIL Premium 15W-40 Diesel Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and longdrain additive system (10.4 TBN) deliver superior engine protection, cleanliness and performance over extended drain intervals. AMSOIL Synthetic 15W-40 Diesel Oil provides
maximum protection for up to 3X the OEM-recommended drain interval, and further with oil analysis.

Controls Soot-Thickening and Wear
The advanced synthetic base oils in AMSOIL 15W-40 Diesel Oil are naturally resistant to soot contamination. 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

Superior Shear Stability, Reduced Oil Consumption
AMSOIL Synthetic 15W-40 Diesel Oil has lower volatility (burn-off) than conventional petroleum oils. Because less oil vapor passes into the combustion chamber, oil consumption and emissions are reduced. Lower volatility helps AMSOIL Premium 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
Conventional 15W-40 8 gal x12=96 gal $13.55 $1,301 $65,050
AMSOIL Synthetic 15W-40 8 gal x4=32 gal $34.36 $1,100 $55,000
Total Savings With AMSOIL $201 $10,050
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.

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:

SAE 15W-40
API CJ-4, CI-4+, CF, SM
Mack EO-O Premium Plus
DDC Power Guard 93K218
Caterpillar ECF-3, ECF-2
Cummins 20081
Volvo VDS-4
MB 228.31
MTU Type I & II
MAN 3275
Global DHD-1
Renault RLD-3

AMSOIL Synthetic 15W-40 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 Synthetic 15W-40 Diesel Oil 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.

Gasoline Engine Service
Two times (2X) OEM* recommendation, not to exceed 15,000 miles or one year, whichever comes first.

*Operating conditions and drain intervals for severe and normal 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.

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 or upon request at (715) 392-7101. Keep Out of Reach of Children. Don't pollute. Return used oil to collection centers.


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)

240 (464)

Fire Point °C (°F) (ASTM D-92)

254 (489)

Pour Point °C (°F) (ASTM D-97)

-40 (-40)

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 D-4683)


Sulfated Ash Content, wt. %


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