Schaeffer’s 722 SynShield® Ultra Performance Diesel Engine Oil SAE 10W-30 CK-4 is a premium, advanced performance, synthetic plus, heavy-duty engine oil. It is formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination, and aeration.

SynShield® Ultra Performance is built for applications that are subjected to severe stop-and-go, excessive idling, short haul and/or severe duty operating conditions. Schaeffer’s proprietary friction modifiers, Micron Moly® and Penetro® create a slippery, tenacious shield that prevents metal-to-metal contact.

SynShield® Ultra Performance is suitable for use in 2007 and 2010 emission compliant diesel engines with EGR and/or DPFs. It can also be used in older non-EGR containing diesel engines and off-highway diesel engines. 

Meets and exceeds API CK-4, CJ-4, CI-4, CI-4 Plus and older. 

Maintains fuel economy.
Less friction.
Up to 85% less wear than conventional CJ-4 oils.
Robust engine durability and engine resiliency.
Less down-time and lower overall maintenance costs
Schaeffer’s 722 10W-30 CK-4 SynShield™ Ultra Performance SAE 10W-30 meets and exceeds the following manufacturers’ specifications and requirements: API Service Classifications CK-4/CJ-4; Military Specification MIL-PRF- 2104K; ACEA E7-12; ACEA E9-12; Global Specification DHD-1; Caterpillar ECF-3; Cummins CES 20081, CES 20086; Detroit Diesel Power Guard Oil Specifications: DDC93K218 and DDC93K222; Deutz DQC III-10 LA; Ford WSS-M2C171-E, WSS-M2C171-F1; JASO DH-2; Mack EO-O Premium Plus, Mack EOS- 4.5; MAN 3275, MAN 3575; MB 228.31; MTU 2.1; Renault VI RLD-3, RLD-4; Volvo VDS 4, VDS 4.5; Navistar; John Deere; CHN (Case-New Holland).

Always consult the owner’s manual and the OEM’s recommendations for the correct engine oil recommendations. More information available in technical data download.