High-performance brake and clutch fluid designed to lubricate and protect critical braking system components while providing reliable stopping power. The anti-vapor lock formula maintains flexibility and performance by combating both water contamination and evaporation. Advanced chemistry resists corrosion and oxidation, and is compatible with SBR, EPDM, and natural rubbers. Exceeds the requirements of US FMVSS 116 DOT 5.1, DOT 3, and DOT 4, SAE J1703, SAE J1704, and ISO 4925 (Classes 3, 4, and 5.1). - For use in all vehicles requiring DOT 5.1 brake fluid - Durable and reliable braking power - Anti-fog formula ensures lever and pedal sensitivity - Resistant to corrosion, oxidation and evaporation - Miscible with other DOT 3, DOT 4 and DOT 5.1 brake fluids - Exceeds US FMVSS 116 DOT 5.1, DOT 3 and DOT 4, SAE J1703, J1704 and ISO 4925 (Classes 3, 4 and 5.1) For use in all hydraulic clutch systems and in all braking systems where DOT 5.1 brake fluids are required. Do not use in DOT 5 silicone brake systems or mix with silicone-based fluids.