Motul RBF 660 Racing Brake Fluid

Motul RBF 660 Brake Fluid is 100% synthetic DOT 4 racing  brake fluid for use in extreme high temperature & racing applications. It is suitable for all types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid. Widely exceeds the DOT 3, DOT4 and DOT 5.1 standards (except for DOT 5.1 viscosity at - 40°C).

Extreme Thermal Resistance and Stability

Motul RBF 660 has a very high dry boiling point (325°C / 617°F), superior to conventional DOT 4, DOT 5, and DOT 5.1 brake fluids. Motul RBF 660 enables effective high-speed braking even under extreme temperature conditions.

Efficient When It Rains

The high wet boiling point (204°C / 400°F) of Motul RBF 660 far exceeds the requirements of DOT 3, DOT 4, and DOT 5.1, enabling excellent braking efficiency while driving or racing in the rain. This also reduces the risk of “vapor lock”.

Note: do not mix synthetic DOT 4 brake fluid such as Motul RBF 660 with DOT 5 silicone-based or any mineral-based brake fluids.