Universal Premium Glycol DOT 4 Brake Fluid (BF004B) by EBC®. DOT 4 brake fluid is a high-quality brake fluid recommended for use in the hydraulic brake and clutch systems of all cars, commercial vehicles and motorcycles for which a glycol-based DOT 3 or DOT 4 fluid is specified. With a higher boiling point than DOT 3 fluid, this fluid is ideally suited for higher performance vehicles where the braking system routinely reaches moderate brake temperatures.