Miles All Spec 10W Miles Monograde Heavy Duty Xhd Diesel Engine Oils are high quality low ash engine oils formulated for diesel engines where ash deposits are a problem. The low ash content reduces ash deposits and helps keep intakes clear. Miles Monograde Heavy Duty Xhd Diesel Engine Oils are Api licensed and exceed Api Cf-2 and Cf requirements. They are recommended for applications requiring Mil-L-2104E and former Api categories Ce, Cd-II and Cd. Advantage Monogrades 30 and 40 also meet the requirements of former Api category SJ, and 10 meets Allison C-4 and Cat To-2. TYPICAL PROPERTIES: CCS, cP( @ -20 ) 1600,Viscosity, cSt @ 100 6.4, Viscosity, cSt @ 40 36.5, Viscosity Index 125, Pour Point, °F -33, Sulfated Ash, Wt. (%) 0.78, Total Base No., (D2896) 7. PERFORMANCE: API CE, CD-II, CD X, API CF2, SJ - API CF X