Performance Friction 25-0038 RH665 DOT 4 Racing Brake Fluid Case of 12

Performance Friction RH665 is a professional-grade DOT 4 racing brake fluid specifically engineered for high-performance racing, track day, rally, and fast road applications where braking systems operate at extremely high temperatures. This is a case containing twelve 500ml bottles.

Extreme Temperature Performance:

RH665 features the highest guaranteed minimum dry boiling point of any DOT 4 brake fluid at 617°F (325°C), protecting against vapor lock and maintaining a firm, consistent pedal even under the most demanding racing conditions. The wet boiling point is guaranteed above 383°F (195°C), significantly higher than standard brake fluids.

Advanced Formulation:

This racing brake fluid is a specialized blend of glycol ether borate esters and polyalkylene glycol ethers combined with advanced corrosion inhibitors, antioxidants, and other performance modifiers. The result is exceptional viscosity, lubricity, and compressibility performance at extreme temperatures, ensuring reliable braking system performance and pedal feel.

Key Features:

• DOT 4 specification - exceeds FMVSS 116 requirements
• Fully street legal and compatible with all DOT 3, DOT 4, and DOT 5.1 fluids
• 617°F (325°C) dry boiling point / 383°F (195°C) wet boiling point
• Maintains optimal viscosity for easy bleeding and firm pedal response
• Compatible with all standard brake system rubbers (SBR, EPDM) and metals
• Case of 12 bottles, 500ml (1.057 US pint) each

Important Notes:

Not suitable for use with magnesium components or mineral oil-based brake systems. For best results, bleed the system with fresh fluid before each racing event, especially after exposure to high temperatures or humid conditions.