Prestone® DOT 4 Synthetic Hi-Temp Brake Fluid is designed to provide a high margin of boiling point protection. The mix of polyglycol ethers ensures hot brake-system operation will not create dangerous vapor. This delivers braking power when needed by avoiding a spongy pedal. The wet and dry boiling points exceed the minimum government standards. A comprehensive inhibitor package protects vital brake system metals Exceeds specifications and provides excellent performance in high temperature braking systemsWith a minimum 510°F (266°C) Dry Boiling Point, it provides 64°F (18°C) more protection than minimum DOT 4 requirementsPrestone DOT 4 provides corrosion protection for ALL metals within the braking system and is suitable for disk, drum, and ABS brakesFor systems that require high temperature DOT 4 brake fluidComplies with Federal Motor Vehicle Safety Standard 116. Meets SAE J1703 & J1704Substantially reduces the possibility of fluid vaporization and eventual brake failure (as a result of vapor lock) by maintaining a high wet boiling pointRecommended for all ABS, disc and drum brake systems as well as hydraulic clutches requiring and DOT 4 fluids