Goodyear Performance Max SAE 15W-40 CK-4 Heavy Duty Diesel Engine Oil – 1 Quart Bottles (Pack of 2) Goodyear Performance Max SAE 15W-40 CK-4 Heavy Duty Engine Oil is formulated to meet or exceed the latest API diesel engine oil specifications and the performance requirements of most diesel engine manufacturers. Designed for modern heavy-duty diesel engines, this advanced formulation provides robust protection, improved oxidation stability, and excellent shear stability for reliable operation in demanding conditions. Performance Max CK-4 diesel engine oil is designed for use in model year 2017 and newer heavy-duty diesel engines while remaining fully backward compatible with engines requiring earlier API C service classifications. Key Benefits Robust protection against engine wear and deposits Improved oxidation stability for longer oil life Excellent shear stability for consistent viscosity protection Backward compatible with previous API C service classifications Suitable for modern and legacy diesel engine applications Applications Suitable for over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars or light trucks equipped with diesel engines where an API CK-4 or earlier C-class oil is specified. Specifications API CK-4 API CJ-4 API CI-4 / CI-4 PLUS API CH-4 / SN E9-16, E7-04 ECF-3, ECF-2, ECF-1a, TO-2 20086, 20081, 20077 93K222, 93K218, 93K214 III-10 LA WSS-M2C171-F1 DH-2 EOS-4.5, EO-O Premium Plus, EO-N Premium Plus 3575 228.31 MTL 5044 Type 2.1 RLD-4, RLD-3 VDS-4.5, VDS-4, VDS-3 Typical Properties SAE Grade: 15W-40 Viscosity @100°C: 14.8 cSt Viscosity @40°C: 111 cSt Cold Cranking Viscosity: 6200 cP @ −20°C Viscosity Index: 139 Total Base Number: 10 Zinc: 0.110 wt% Phosphorous: 0.100 wt% Sulfated Ash: 1.0 wt%
