Performance Engineered Lubricants - Since 1919
   
 




   
Diesel Engine Oils

diesel engine oil J-4D-A's Reliant J-4™ engine oil family has been designed specifically to meet the stringent requirements of API Service Category J-4. This new classification is required in 2007 and later model diesel engines running on ultra-low sulfur diesel fuel and equipped with after-treatment devices.

D-A Reliant J-4 engine oils keep the D-A tradition alive with breakthrough ChemGuard™ technology giving your engines the protection they deserve from extreme operating conditions. American ingenuity has crossed the technology line again and has surpassed the demands of mechanical engineering. Customizing with narrow cut base stock reduces oil consumption in the high-temperature ring belt zone during peak operating times; it also contributes to excellent cold-crank ability for initial cold weather start- ups.

The re-engineering of our over-based additive package with active detergents (TBN) and dispersants keeps your engine free from excessive corrosive wear and soot loading caused by the diesel engine chemical combustion process. Coupled with our highly sheer stable polymers, the result is resistance to in-service viscosity loss and the capability to customize oil drain intervals. The D-A Reliant J-4™ family includes D-A Reliant J- 4 8 (8 TBN), D-A Reliant J-4 10 (10 TBN), the Synthetic Blend technology of D-A Reliant ST J-4 8 and D-A Reliant ST J-4 10 and the full synthetic D-A Reliant J-4 FS.

D-A has always been The Long Drain Champion!
D-A diesel engine oil

D-A diesel engine oil is technologically-advanced with ChemGuard™ and specially formulated to stand up to all the hardships that your heavy-duty engine endures every day.

D-A makes a wide variety of diesel engine oil for every different engine type and size.

Click on the PDS or SDS link next to each product to see more information.


Reliant J-4™ 8
D-A Reliant J-4™ 8 Oil has been designed specifically to meet the stringent requirements of API Service Category CJ-4 oils required for use in 2007 and later model diesel engines which run on ultra-low sulphur diesel fuel and may be equipped with aftertreatment devices. Reliant J-4™ 8 SAE 15W-40 and SAE 10W-30 are API Licensed. API Service Category: CJ-4/SN, as well as supporting the requirements of CAT ECF-3; Cummins CES 20081; Detroit Diesel DDC93K218; Mack EO-O Premium Plus-07; Volvo VDS-4.
PDS | SDS
Reliant J-4™ 10
D-A Reliant J-4™ 10 Oil has been designed specifically to meet the stringent requirements of API Service Category CJ-4 oils required for use in 2007 and later model diesel engines which run on ultra-low sulphur diesel fuel and may be equipped with aftertreatment devices.  It has a 10 TBN rating, the highest in the industry. Reliant J-4™ 10 SAE 15W-40 and SAE 10W-30 are API Licensed. API Service Category: CJ-4/SN, as well as supporting the service requirements of CAT ECF-3; Cummins CES 20081; Detroit Diesel DDC93K218; Mack EO-O Premium Plus-07; Volvo VDS-4.

PDS | SDS
Reliant ST J-4™ 8 Synthetic Blend
D-A Reliant ST J-4™ 8 Synthetic Blend has been designed specifically to meet the stringent requirements of API Service Category CJ-4 oils required for use in 2007 and later model diesel engines which run on ultra-low sulphur diesel fuel and may be equipped with aftertreatment devices.  Reliant ST J-4 8 supports the performance requirements of CJ-4/SN, as well as CAT ECF-3; Cummins CES 20081; Detroit Diesel DDC93K218; Mack EO-O Premium Plus-07; Volvo VDS-4.

PDS | SDS
Reliant ST J-4™ 10 Synthetic Blend
D-A Reliant ST J-4™ 10 Synthetic Blend has been designed specifically to meet the stringent requirements of API Service Category CJ-4 oils required for use in 2007 and later model diesel engines which run on ultra-low sulphur diesel fuel and may be equipped with aftertreatment devices.  It has a 10 TBN rating, the highest in the industry. Reliant ST J-4 10 supports the performance requirements of CJ-4/SN, as well as CAT ECF-3; Cummins CES 20081; Detroit Diesel DDC93K218; Mack EO-O Premium Plus-07; Volvo VDS-4.

PDS | SDS
Reliant J-4™ FS, Full Synthetic
D-A Reliant J-4™ FS Full Synthetic SAE 5W-40 has been designed specifically to meet the stringent requirements of API Service Category CJ-4 oils required for use in 2007 and later model diesel engines which run on ultra-low sulphur diesel fuel and may be equipped with aftertreatment devices.  Reliant J-4 FS supports the performance requirements of CJ-4/SM, as well as CAT ECF-3, Cummins CES 20081, Detriot Diesel DDC 93K218, Volvo VDS-4, Mack EO-O Premium Plus.

PDS | SDS
Reliant™
D-A Reliant™ is a technologically-advanced heavy-duty diesel engine oil  designed to provide extra protection against deposits and wear for engines operating in heavy duty service. SAE 15W-40 and SAE 10W-30 support the performance requirements of: API CI-4/SL, CAT ECF-2, Cummins CES 20078, Detriot Diesel DDC93K215, Mack EO-N, Volvo VDS-3. Mono grades are also available.

PDS | SDS