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: 617°F (325°C). Ultra-efficient in the rain with a very high wet boiling point: 400°F (204°C). Mixes with DOT 3 and 4 systems (Not DOT 5).