Castrol React SRF Racing brake fluid is specially formulated to maximise braking performance in competitive motor sports, where extreme braking conditions are encountered.
React SRF DOT 4 brake fluid has a very high boiling point of over 300 degrees celsius making this fluid ideal for even the most extreme conditions. It has been specifically designed to be a high temperature alternative to DOT 5.1. fluids.
To achieve such high performance and ensure maximum efficiency, it’s recommended that Castrol SRF is changed in eighteen month cycles. Prolonged use in excess of the recommended period may give rise to a deterioration in performance at very low temperatures
Castrol React SRF is suitable for all disc and drum brake systems except vehicles that have mineral oil systems.
- Exceeds US Federal Standards FMVSS 116 DOT 3
- DOT 4, ISO 4925, JIS K2233
- SAE J 1703 & SAE J 1704
- SAE J1703
- FMVSS 116 DOT 3 & 4
This product was previously known as Response Super Dot 4.