Castrol Brake Fluid React Performance Dot 4 500ML High performance polyglycol type brake fluid designed to provide superior braking performance in a variety of vehicles, especially those that operate at higher temperatures or under increased loads. FEATURES & BENEFITS High boiling point: Exceeds US FMVSS DOT 3 and DOT 4 specification requirements, and offers a performance reserve over brake fluids with lower boiling points. High vapour lock temperature: Greater protection against brake fluid vaporization. Corrosion protection: Outstanding protection against corrosion caused by absorbed moisture that can cause rusting and failure of components High temperature stability provides a greater margin for safety because product performance will not fade under higher temperatures. Controlled viscosity requirements: Under extreme s of temperature and operating conditions, the product will maintain an optimum operating viscosity to ensure greater safety Rubber swell control: Contributes to efficient operation of the braking system components. Compatible with all other brake fluids that meet either DOT 3, DOT 4 or Super DOT 4 Specifications SPECIFICATION/TECHNICAL DATA FMVSS 116 - DOT 4 ISO 4925 Class 4 JASO JIS K2233 SAE J1703 SAE J1704 AS 1960.1-2005 Grade 3