RBF 660 Brake Fluid is a high‑performance, 100% synthetic DOT 4 racing brake and clutch fluid designed to endure extreme temperatures produced by high‑performance braking systems. It has very high dry (617°F/325°C) and wet (around 01°F/205 °C) boiling points, which helps prevent vapor lock and brake fade during intense use. Suitable for all hydraulic‑actuated brake and clutch systems that require non‑silicone synthetic fluid and exceeds DOT 4 requirements for stability and heat resistance.
- DOT 4 racing fluid
- High boiling point
- Track/racing ready
- Brake and clutch use
- Extreme heat performance
- DOT 4
- Synthetic
- 500 ml (1/2 liter)
| Brand | Motul |
| Part Number | 101667 |
| Product Line | RBF 660 |
| DOT Standard Number | 4 |
| Dry Boiling Point Fahrenheit | 622 Degrees |
| Dry Boiling Point Celsius | 328 Degrees |
| Wet Boiling Point Fahrenheit | 399 Degrees |
| Wet Boiling Point Celsius | 204 Degrees |
| Synthetic | Yes |
| Volume | 16.9 oz |
| Material | Glycol |
| Quantity | Each |










