Issue link: http://read.dmtmag.com/i/859318
Gear Lubricants Product Data castrol.com/GPS 800 255 4417 May 2025 GPS Castrol ® Axle FD-1 Castrol Axle FD-1 is semisynthetic, multi-grade final drive fluid designed to extend drain intervals up to 6000 hours* in off-road final drives where FD-1 specified fluids are suitable for use. Additionally, Castrol Axle FD-1 provides excellent wear protection and outstanding oxidation resistance, thus extending component life. Oxidation Resistance Castrol Axle FD-1's outstanding resistance to oxidation improves fluid life while resisting the formation of sludge and deposits. In the ASTM D2272 oxidation test, Castrol Axle FD-1 demonstrated up to 56% oxidation resistance versus conventional monograde fluids providing greater assurance during extended drain intervals. Additionally, Castrol Axle FD-1's synthetic base stock withstands a wide range of operating temperatures. Wear Protection e excellent wear protection offered by Castrol Trans-C and Castrol Axle FD-1 Fluids is further demonstrated in the FZG D 4998 gear wear test where gear teeth wear is measured. Castrol Axle FD-1 improved wear protection when compared to mineral TO-4 50 fluids. is gives final drives enhanced protection and increased component life. *with proper used oil analysis program Industry Specifications and OEM Approvals: • Meets or exceeds Caterpillar FD-1 requirements Test Method Typical Results Kinematic Viscosity at 40° C, cSt ASTM D445 326 Kinematic Viscosity at 100° C, cSt ASTM D445 31.6 Viscosity Index ASTM D2270 135 Flash Point, °C (°F) ASTM D92 240(464) Pour Point, °C (°F) ASTM D97 -27(-17) Brookfield Viscosity, -20°C, cP ASTM D2983 44,600 20 Hr KRL Shear Test Aer Shear cSt @ 100°C CEC-L45-20 31.4 % Viscosity Loss -0.66 FZG Gear Scuffing, Pass Load Stage ASTM D5182 12 FZG Gear Wear, mg wt Loss ASTM D4998 13 Gravity, API ASTM D287 31.4 Pounds per Gallon ASTM D287 7.23 Specific Gravity @60F, g/ml ASTM D1298 0.8679 E23 (!castror JbdeFD-1 lf80W•J40 ecastrof