Exceptional performance under extreme conditions

Castrol React SRF Racing is specially developed for use in competitive car and motorsports where extreme braking conditions occur. Thanks to its exceptionally high dry boiling point of 320°C, this brake fluid offers reliable performance, even during intensive braking in races or rallies.

Advanced formulation for optimal braking power

This synthetic brake fluid exceeds the requirements of various international standards, including:

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

This guarantees a high level of performance and compatibility with different braking systems.

Maintains performance throughout its lifespan

A key advantage of Castrol React SRF Racing is its high 'vapour lock' point, which is essential for reliable braking performance at high temperatures. This point is maintained during use, ensuring the brake fluid consistently performs throughout the recommended service interval.

Recommended use and maintenance

For optimal performance, it is recommended to replace the brake fluid every 18 months. This maintenance interval helps preserve the fluid's exceptional properties and ensures a safe and effective braking system. (kernow-oils.co.uk)

Areas of application and compatibility

Castrol React SRF Racing is suitable for all disc and drum brake systems, except those requiring a mineral brake fluid. It is ideal for vehicles used in racing or rally sports and other applications where high braking performance is required.

Technical specifications

• Dry boiling point: 320°C
• Wet boiling point: 270°C
• Viscosity at -40°C: 1300 mm²/s
• Viscosity at 100°C: 3.5 mm²/s

These properties ensure excellent thermal stability and reliable performance under various conditions.

Important considerations for use

It is not recommended to mix Castrol React SRF Racing with conventional brake fluids, as this may reduce performance. For best results, the braking system should be completely drained and flushed before refilling with this brake fluid.