High-performance racing brake fluid used in competitive motor sports where extreme braking conditions are encountered. The compressibility of Castrol React SRF Racing is very similar to that of current DOT 3 and DOT 4 fluids, and can therefore be filled into any braking system used in motor sport, with the exception of those for which a mineral oil is prescribed. It gives a “hard pedal” feel.

This is an exclusive Castrol product registered under patents in many countries. Castrol React SRF Racing meets US Federal Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925 Class 4, JASO JIS K2233 Class 4 and current SAE J1703 specifications

Note: Brake Fluids cannot be shipped via air - they can be shipped by ground methods only.

APPLICATION

Castrol React SRF Racing has an exceptionally high dry boiling point, typically 325°C, making it ideal for use under arduous braking conditions such as racing or rallying. Castrol React SRF Racing has a very high vapour lock point (the more important measure of high temperature performance under actual braking conditions), and has the additional advantage of sustaining high vapour lock point characteristics during its service life. In order to achieve the optimum benefits in such applications, advanced materials have been employed in a unique and patented Castrol formulation. The properties of this formulation are such that in order to derive maximum benefit the use of Castrol React SRF Racing should be restricted to not more than eighteen months before draining and refilling.

ADVANTAGES

Castrol React SRF Racing is suitable for all disc and drum brake systems with the exception of those for which mineral oil is prescribed. It is miscible with all conventional fluids meeting US Federal Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925 and current SAE J1703. However, mixing with conventional brake fluids will merely reduce the higher quality of Castrol React SRF Racing and therefore recommended that conventional brake fluids be drained from the system before flushing and re refilling. It is recommended that this fluid is changed every 18 months to maintain it's exceptionally high vapour lock performance. 

TYPICAL CHARACTERISTICS

PRODUCT PERFORMANCE CLAIMS

• FMVSS 116 DOT 3
• FMVSS 116 DOT 4
• ISO 4925 Class 4
• SAE J1703
• JASO JIS K2233 Class 4

For High Performance Brake Fluids, see the following:

• Ate Performance Brake Fluid - Very Good
• Motul RACING Brake Fluid - Better
• Castrol React SRF RACING Brake Fluid - Best
• Brembo Performance LCF600 Brake Fluid - Great Value!