Brake Fluid & Coolant

Types of brake fluids:

DOT 3: Usually formulated with a glycol-ether base. It’s appropriate for regular vehicles used for typical purposes DOT 4: Very similar to DOT 3 but with additives that increase the minimum boiling points. DOT 4 fluids have a superior dry boiling point, but require more frequent changes. DOT 4 fluids designed for racing or performance cars can significantly exceed the minimum boiling points – they’re sometimes referred to as Super DOT 4 fluids. Regular DOT 4 is appropriate for regular vehicles. If it’s the specified brake fluid type, the factory replacement interval will take into account DOT 4‘s increased water absorption rate.