1Based on independent testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation.
Heavy-Duty Engine Protection
Wear on rings and cylinder liners leads to increased oil consumption and
loss of compression, resulting in reduced horsepower and fuel economy.
Independent testing shows AMSOIL Heavy-Duty Synthetic Diesel Oil
delivers 4X more wear protection1 to help maximize equipment life and
reduce maintenance costs and downtime.
Viscosity Control
Formulated with advanced synthetic base oils and detergent/dispersant
additives, AMSOIL Heavy-Duty Synthetic Diesel Oil minimizes viscosity
change while keeping soot particles suspended independently, helping
prevent the formation of larger, wear-causing particles. Lower volatility
also helps Heavy-Duty Synthetic Diesel Oil retain its viscosity after high-temperature
service for added engine protection and increased fuel
economy.
Excels in Extreme Temperatures
AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated to deliver
improved heat and oxidation resistance compared to conventional diesel
oils. It provides clean engine operation and helps maintain power and
fuel efficiency for superior engine performance. AMSOIL Heavy-Duty
Synthetic Diesel Oil also flows dependably in cold temperatures for
easier startup and improved engine protection.
Minimizes Oil Consumption
AMSOIL Heavy-Duty Synthetic Diesel Oil has a low rate of volatility (burn-off),
reducing oil consumption during operation and passing less oil
vapor into the combustion chamber. It provides up to 66 percent less oil
consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
APPLICATIONS
Use in diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:
- API CK-4, CJ-4, CI-4+, CF
- Volvo VDS4.5, VDS4, VDS3
- Mack EOS-4.5, EO-O
- Renault RLD-4, RLD-3
- Cummins CES20086, CES20081
- Caterpillar ECF-2, ECF-3, ECF-1-a
- DDC 93K218, 93K215, 93K214
- DFS 93K222
- ACEA E9, E7
- MB 228.31
- MAN 3575
- MTU Type 2.1, II, I
- JASO DH-2
- Deutz DQC III-10LA
- Chrysler MS 10902
- Ford WSS-M2C171-F1
All viscosities capable of gasoline service API SN; consult owner's manual for proper viscosity recommendation.

COMPATIBILITY
AMSOIL Heavy-Duty Synthetic Diesel Oil is compatible with other conventional and synthetic engine oils. Mixing AMSOIL diesel oils with other oils, however, will reduce the performance benefits.
Aftermarket oil additives are not recommended for use with AMSOIL synthetic diesel oils.
SERVICE LIFE
AMSOIL Heavy-Duty Synthetic Diesel Oil is recommended
for the drain intervals stated by the original equipment
manufacturer (OEM). Refer to the owner's manual for the specific oil change interval. Intervals may be extended beyond
the OEM-recommended interval with oil analysis. Provides
lasting protection for multiple events during competition. Use oil
analysis to determine appropriate drain interval for competition
use or when extending drain intervals beyond the OEM
recommendation.
HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended
application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available online at www.amsoil.com or upon request at 715-392-7101. Keep Out of Reach of Children.
Recycle used oil and bottle.
AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is
made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.