ECSTAR DOT 4 Brake Fluid is specifically formulated and recommended for use in all vehicles requiring DOT 4 brake fluid. Conforms to FMVSS No. 116 (Wet ERBP 311 degrees F,) SAE J1703 Specifications. Check your vehicle operator’s manual for manufacturer’s service recommendations. Refer to the appropriate service manual before adding or replacing brake fluid. Do not mix with DOT 5 fluid. Avoid fluid contact with brake lining or painted surfaces.