Valvoline Performance System Brake Fluid is recommended for all ABS, drum or disc brake systems that specify DOT 4 brake fluid. Its premium low moisture formulation with a dry equilibrium reflux boiling point greater than 500°F provides superior performance even under severe conditions. As brakes generate heat, brake fluid must remain liquid, without boiling to operate properly. Valvoline Performance System Brake Fluid is compatible with conventional brake fluid and meets SAE J1703, FMVSS No. 116 and DOT 4 specifications.