Castrol 15FBE8 React SRF Racing Brake Fluid DOT 4 - 1 Liter

Castrol React SRF Racing Brake Fluid is an ultra-high-performance DOT 4 brake fluid engineered specifically for the extreme demands of international motorsport, track days, and performance driving. Available in a convenient 1-liter bottle, this exclusive European formula delivers superior braking consistency and fade resistance under the most punishing conditions.

Key Features:

• Exceptionally High Boiling Points: Dry boiling point of 590°F (310°C) and wet boiling point of 518°F (270°C), providing outstanding protection against vapor lock
• Patented Silicon Ester Technology: A novel formulation pioneered by Castrol and granted patent protection in numerous countries — less hygroscopic than conventional glycol ether brake fluids, meaning it absorbs less moisture over time
• Reactive Water Management: Unlike standard glycol ether fluids, Castrol SRF chemically reacts with any absorbed moisture to neutralize its adverse effects, maintaining high-temperature performance margins far longer
• Superior Anti-Vapor Lock: Engineered to resist vaporization and contamination for consistent, responsive braking during racing, rallying, and hard track use
• Broad Standards Compliance: Exceeds US Federal Motor Vehicle Safety Standards FMVSS 116 DOT 3 and DOT 4, ISO 4925, and JIS K2233
• Universal Compatibility: Safe for use in all non-mineral oil-based disc and drum brake systems
• 1 Liter Bottle: Sufficient for a full system flush or top-off on most performance vehicles

Castrol SRF React is the fluid of choice for serious competitors and performance enthusiasts who demand maximum braking performance and reliability. Its unique chemistry ensures that braking confidence is maintained even after extended high-heat sessions on track.