CAM2 PROMAX? J20D Tractor Hydraulic Fluid is a premium quality low temperature tractor hydraulic fluid blended from highly refined base stocks and formulated for long-term service under severe conditions. It is designed for use in equipment utilizing a common pump or requiring a single fluid for final drive, transmission, differential power take-off (PTO) units and wet brake systems. CAM2 PROMAX? J20D Tractor Hydraulic Fluid is a low viscosity formulation designed for use in colder applications where it is desired that the product maintains its excellent lubrication in colder temperature applications.