Motul RBF 660 Racing Brake Fluid
Motul RBF 660 Racing Brake Fluid, Fluid for all types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid and is specially designed to resist the extreme temperatures generated by carbon and ceramic racing brakes.
100% synthetic racing fluid - DOT 4.
One of the highest dry boiling points on the market: 617AdegF (325AdegC).
Ultra-efficient in the rain with a very high wet boiling point: 400AdegF (204AdegC).
Mixes with DOT 3 and 4 systems (Not DOT 5).
O.E.M. approvals: FMVSS 116 DOT 4; SAE J1703.
Extreme thermal resistance and stability: Very high boiling point (325AdegC / 617AdegF), superior to conventional DOT 5.1 non silicone base / DOT 5 silicone base fluids (260AdegC / 500AdegF mini) and DOT 4 (230AdegC / 446AdegF mini), enables effective braking even in extreme conditions.
Efficient when rainy: Very high wet boiling point, (204AdegC / 400AdegF) superior to conventional DOT 5.1 non-silicone base fluid (180AdegC / 356AdegF mini) and DOT 4 (155AdegC / 311AdegF), enables continued brake system efficiency even when rainy. Brake fluids tend to absorb humidity from the air, which reduces the boiling point and increases the risk of encountering "vapor lock" phenomena. The wet boiling point is measured by humidifying the product with about 3.5% of water.