Brake fluid plays a crucial role as it runs through the braking system and transfers the force created when you push the brake pedal directly onto the wheel hub. It's an important component to have and without it, your brakes would not work.
In addition, the brake fluid serves as a lubricant of all movable parts and prevents corrosion. It has to be compatible with rubber seals and hoses thus allowing braking systems to achieve long service and optimal performance.
Heat generated from braking, be it heavy braking or prolonged braking can and may affect the brake fluid which can only work if it is in a liquid state and not vapourising. The boiling point that your brake fluid achieves is crucial to the brake efficiency, as temperatures above the boiling point can potentially result in brake failure. Brake fluid will absorb moisture during its life in your car. As the water content increases in your brake fluid, the boiling temperature of the liquid, will decrease. Thats is why it is prudent to replace your Brake Fluid at set periods to reduce the water content, increase the boiling point and therefore help towards having a safer braking system.
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