VP Racing Racing brake fluid is a high performance formula with linear in-braking characteristics across temperature ranges making it an easy choice for high-load track cars that see the extreme heat generated by hard and constant braking. Racing DOT 4 brake fluid is specially formulated to provide the highest performance under racing conditions (where brake systems must remain stable at extreme temperatures) Dry boiling point of 622 degrees F for best results, it is recommended to bleed the entire brake system with fresh fluid before each race, especially if the brakes see excessively high heat, or are used in a humid environment.