Engineered by Quarter Master and Endure Performance Lubricants Race Clutch Hydraulic Fluid is specially formulated to maintain viscosity (thickness) in extreme temperature race and hardcore performance applications that specify DOT 3 hydraulic brake fluid. Containing a proprietary mixture of lubricants and corrosion inhibitors, Race Clutch Hydraulic Fluid provides a solid pedal feel and consistent pedal actuation while maximizing the life of all seals and o-rings in the clutch master cylinder and throw-out bearings.