Valvoline DOT 3 brake fluid is a high-performance synthetic brake fluid. The chemical composition of the fluid is based on ethylene glycol and is therefore suitable for use in hydraulic brake systems. The brake fluid is specially formulated to maximize driving safety for all brake system materials. Like other high quality Valvoline brake fluids, DOT 3 is suitable for all driving conditions and braking systems, providing effective braking power. Choosing DOT 3 Brake Fluid is a guarantee of high performance and system protection.