Extreme high performance polyglycol brake fluid. Far exceeds the standards of DOT 4. Each bottle is filled with Nitrogen, increasing shelf life and eliminating contamination while factory sealed. • Very high dry boiling point of 617F (325C) and a wet boiling point of 400F (204C).• For all types of hydraulic brake and clutch actuators requiring non-silicone synthetic fluid.• Specially designed to resist extreme temperature generated by racing brakes (carbon and ceramic) only allowing a minimal air entrance for brake cooling.