Formulated for the demands of racing on track, Pro-System Pro-660 brake fluid protects against boiling and brake fade at higher temperatures for consistent pedal feel while maintaining lubricity and viscosity properties. Packaged in a durable metal container ensures a shelf life of up to 24 months by limiting moisture absorption, unlike plastic containers. Pro-660 is compatible with all DOT 4 and DOT 3 fluids on the market.