Product code: OED
Formulated for Excellent Diesel Engine Protection and Performance
MSOIL OE 15W-40 SYNTHETIC DIESEL OIL provides excellent protection and performance in both on-
and off-road diesel engines for the original equipment manufacturer’s recommended drain interval.
It meets API CJ-4 specifications and is suitable for both modern and older diesel applications.
AMSOIL OE 15W-40 Synthetic Diesel Oil exceeds the higher performance demands of modern engines
and withstands the stress of heat, soot and acids to help prevent deposits, wear and corrosion.
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 OE 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).
AMSOIL OE 15W-40 Synthetic Diesel Oil is formulated for improved heat and oxidation resistance over
conventional petroleum oil for cleaner engine operation, maintaining power and fuel efficiency for
superior engine performance. Its dependable cold-temperature flow assures easier start-up and
improved post start-up protection.
Resists Oil Consumption and Emissions
Due to its low rate of volatility (burn-off), AMSOIL OE 15W-40 Synthetic Diesel Oil is able to
reduce oil consumption and emissions during operation. It maintains its excellent film strength
even during high-temperature operating conditions to ensure dependable protection, performance and
Controls Soot-Thickening and Wear
AMSOIL OE 15W-40 Synthetic Diesel Oil is formulated with premium synthetic base stocks and robust
detergent/dispersant additives that keep soot particles from agglomerating and forming larger
wear-causing particles. The AMSOIL OE 15W-40 Synthetic Diesel Oil formulation allows for optimal
soot-related viscosity control to maintain stay-in-grade performance.
AMSOIL OE 15W-40 Synthetic Diesel Oil is recommended for diesel engines and, where appropriate,
gasoline engines requiring any of the following specifications:
- API CJ-4, CI-4+, SM...
- ACEA E9
- DDC 93K218
- Cummins CES 20081
- MB 228.31
- CAT ECF-3, ECF-2, ECF-1-a
- Mack EO-O Plus
- Volvo VDS-4
- MAN 3575
- Renault RLD-3
- MTU Type 2.1
AMSOIL OE 15W-40 Synthetic Diesel Oil is compatible with conventional and synthetic motor oils.
Mixing AMSOIL motor oils with other oils, however, will reduce the performance benefits.
Aftermarket oil additives are not recommended for use with AMSOIL motor oils.
AMSOIL OE 15W-40 Synthetic Diesel Oil is recommended for the intervals stated by the original
equipment manufacturer (OEM). Refer to the owner’s manual for specific oil change interval
recommendations. AMSOIL recommends the oil filter be replaced at each oil change as recommended
by the OEM. When using an AMSOIL By-Pass Filtration System, refer to the By-Pass Oil Filter data
bulletin (G498) for more information.
Health and 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). MSDS’s are available
upon request at 715-392- 7101 or on the AMSOIL Website. Keep Out of Reach of Children. Don’t
pollute. Return used oil to collection centers.
For AMSOIL warranty information, click here.
Table of Oil Drain Interval Recommendations
OE 15W-40 SYNTHETIC DIESEL OIL
- OEDQT-EA - 1-Quart Bottle
- OEDQT-CA - 1-Quart Bottles (case of 12)
- OED1G-EA - 1-Gallon Bottle
- OED1G-CA - 1-Gallon Bottles (case of 4)
- OEDTP-EA - 2.5-Gallon Bottle
- OEDTP-CA - 2.5-Gallon Bottles (case of 2)
- OED30-EA - 30-Gallon Drum
- OED55-EA - 55-Gallon Drum
- OED27-EA - 275-Gallon Tote