RBF 660 Racing Brake Fluid Factory Line 500ml

Motul RBF 660 Racing Brake Fluid
Factory Line
100% Synthetic Racing Fluid – DOT 4
Very high boiling point: 328°C / 622°F
For hydraulic actuated brake and clutch systems

TYPE OF USE
All types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid.
Specially designed to resist to extreme temperature generated by racing carbon and ceramic brakes
allowing minimizing air entrance for brake cooling.
Can be also used with conventional steel discs and clutch systems actuators.
Widely exceeds DOT 3, DOT 4 and DOT 5.1 standards (except for DOT 5.1 viscosity at - 40°C).

PERFORMANCES
STANDARDS FMVSS 116 DOT 4 / SAE J1703
Extreme thermal resistance and stability:
MOTUL RBF 660 FACTORY LINE very high boiling point (328°C / 622°F) is superior to conventional
brake fluids DOT 5.1 (260°C / 500°F mini) and DOT 4 (230°C / 446°F mini), and therefore enables
effective braking even in extreme conditions.
Provides better aerodynamic performance by reducing air entrance for brake cooling on cars.
Efficient when rainy:
MOTUL RBF 660 FACTORY LINE very high wet boiling point (204°C / 399°F) is superior to
conventional brake fluids DOT 5.1 non-silicone base (180°C / 356°F mini) and DOT 4 (155°C / 311°F
mini), and therefore enables to keep efficient braking in wet conditions.
Brake fluids tend to absorb humidity from the air, which reduce boiling point and increase the risk to get
to “vapor lock” phenomena.
The wet boiling point is measured by humidifying the product with 3% of water.

RECOMMENDATIONS
Avoid mixing with polyglycol based brake fluids.
Do not mix with silicone (DOT 5 silicone base) or mineral base fluids (LHM).
Store brake fluid in its original container, tightly closed to prevent moisture absorption.
Aggressive chemical product if contact with hands, paint or varnish.
If skin contact, rinse thoroughly with water.

PROPERTIES
100% Synthetic fluid, polyglycol bases.
Color Amber
Dry boiling point 328 °C / 622 °F
Wet boiling point 204 °C / 399 °F
Viscosity at -40 °C (-40 °F) 1698 mm²/s
Viscosity at 100 °C (212 °F) 2.59 mm²/s