Maxima Brake Fluid is now available in SYN DOT 4 Hi-Temp Silicone. The racing grade has a minimum boiling point of 600°F which assures fade-free operation under the most severe use. All three Maxima Brake Fluids are advanced glycol blends with the latest additives to maintain your hydraulic brake and clutch system in top condition and prevent vapor lock. SYN DOT 4 Hi-Temp is compatible with other DOT 3 and DOT 4 brake fluids.