Motul RBF 660 FL DOT4 – For racing brake systems
Motul RBF 660 FL DOT4 is a 100% synthetic, silicone-free brake fluid designed for hydraulic brake and clutch systems. It’s specifically engineered for vehicles that experience extreme thermal stress during motorsport use.
Exceptional heat resistance and stability
- Dry boiling point: 325 °C – much higher than DOT 4 (230 °C), DOT 5.1 (260 °C), or DOT 5 (260 °C)
- Wet boiling point: 204 °C – ensures efficient braking even in wet conditions
- High thermal stability with low vaporization under heavy load
Developed for racing applications
Perfect for steel or carbon brake systems on racing cars and rally vehicles. The reduced need for cooling airflow allows for improved aerodynamics on competitive vehicles.
Usage notes
- Do not mix with mineral or silicone-based brake fluids
- More frequent fluid changes are recommended due to high performance use
- Avoid long exposure to air humidity – always keep container tightly sealed
Standards and approvals
- FMVSS 116 DOT 4
- SAE J1703
- ISO 4925
Compatibility
- Compatible with all hydraulic brake and clutch systems
- Designed for motorsport and track-day use
- Reference part number: Motul_RBF660
