Features and Benefits Enhanced performance against water absorption, which improves resistance to vapour lock. Compatible with DOT 3, ?standard? DOT 4 & DOT 5.1 brake fluid. Product Information Universal Brake Fluid DOT 4 is a high boiling point brake fluid meeting current requirements of SAE J 1703 and FMVSS 116 DOT 4. For all braking systems where a non-mineral fluid is required. Please refer to technical data sheet for additional technical information.