UltraFleet HD Syn-Blend 10W-30 CK-4 Diesel Engine Oil CHAMPION UltraFleet Synthetic Blend CK-4 series engine oils are designed to provide industry-leading performance to meet the needs of the next generation of heavy duty engines. Increased power density, reduced oil volume and extended drain intervals place unique demands on engine oils to control oxidation by-products, sludge and deposits. Due to higher shear stress and lower viscosity minimums for engine oils, only oils with the highest wear protection and viscosity stability can maximize the performance and life of advanced diesel engines. Champion UltraFleet Synthetic Blend CK-4 Oils Meet or Exceed the Following Specifications: API CK-4, CJ-4, CI-4 Plus â?¢ ACEA E7-12, E9-12 JASO DH-2 Volvo VDS-4.5, VDS-4 Cummins CES 20086, CES 20081 Detroit Diesel DFS93K218 Detroit Diesel DFS93K222 Ford WSS-M2C171-F1 Mack EO-O Premium Plus Renault VI RLD-3 CAT ECF-3 Part# 4161N 1 Gal. Part# 4161AN 55 Gal.