High performance brake and clutch fluid designed to lubricate and protect critical brake system componentry while providing reliable stopping power. Anti-vapor lock formulation maintains responsiveness and performance by fighting both water contamination and vaporization. Advanced chemistry resists corrosion, oxidation and is compatible with SBR, EPDM and natural rubbers. For use in all vehicles specifying DOT 5.1brake fluid Durable and reliable stopping power Anti-vapor lock formulation maintains responsive lever and pedal feel Resists corrosion, oxidationand "boil-off" Mixes with other DOT 3, DOT 4 and DOT 5.1 brake fluids Exceeds US FMVSS 116 DOT 5.1, DOT 3 & DOT 4, SAE J1703, J1704 and ISO 4925 (Classes 3, 4 and 5.1)