DOT Brake Fluids Maxifluid Brake 7612508 Maxifluid Brake DOT 4 is a synthetic brake fluid, non-petroleum based, suitable for brake and clutch systems requiring DOT 3 or DOT 4 fluids, except those using mineral-based fluids. Its high boiling point and anti-corrosion protection ensure safe and reliable braking, with excellent compatibility with seals and rubber components. View