Why do you need the Brake Fluid?

When it comes to the safety of your vehicle and yourself, few components are as critical as the braking system. The brake system relies on several key components to function properly, and one of the often overlooked heroes in this system is brake fluid.

In this article, we will explore the essential role of brake fluid and why it is indispensable for your vehicle’s braking performance and overall safety.

What is Brake Fluid?

Brake fluid is a specially formulated hydraulic fluid that plays a critical role in a vehicle’s braking system. It is a type of non-compressible fluid that is used to transmit force and pressure from the brake pedal to the brake components at each wheel, allowing the vehicle to slow down and stop effectively.

Why is Brake Fluid Important?

  1. Transmitting Hydraulic Pressure

At the heart of any modern vehicle’s braking system is hydraulic pressure. When you press the brake pedal, the force you apply is transmitted through a network of interconnected components to apply the brakes on all four wheels. Brake fluid serves as the medium for transmitting this hydraulic pressure.

As you apply pressure to the brake pedal, the brake fluid efficiently transfers this force to the brake calipers or wheel cylinders, which then squeeze the brake pads or shoes against the brake rotors or drums, ultimately bringing your vehicle to a stop.

  1. Maintaining Consistent Braking Performance

One of the key attributes of brake fluid is its ability to maintain consistent viscosity and performance across a wide range of temperatures. This characteristic is particularly crucial for brake systems because they operate in varying conditions.

Whether you’re driving in sweltering heat or cold, the brake fluid ensures that your brakes respond consistently and effectively, allowing for safe and predictable stopping power.

  1. Preventing Corrosion and Rust

Brake fluid is also formulated to resist corrosion and rust within the braking system. The components within your braking system, such as the brake lines, calipers, and master cylinder, are often made of metal.

Without proper protection, these metal components can corrode and weaken, compromising the integrity of the entire braking system. Brake fluid contains additives that inhibit corrosion, helping to prolong the life of these critical components.

  1. Boiling Point and Fade Resistance

Brake fluid has a high boiling point, which is another crucial characteristic. When you apply the brakes, the friction generated between the brake components can generate significant heat.

If the brake fluid were to boil, it would form gas bubbles in the system, which are compressible and can lead to a spongy brake pedal feel and reduced braking performance. High-quality brake fluid with a high boiling point is essential to prevent brake fade, especially during prolonged or heavy braking situations.

  1. Moisture Absorption

Over time, brake fluid can absorb moisture from the surrounding environment. Moisture can find its way into the braking system through seals and tiny imperfections in the brake lines.

Moisture-contaminated brake fluid can lower its boiling point and promote corrosion within the system. Regular brake fluid replacement, typically recommended every two years or as specified by your vehicle’s manufacturer, helps mitigate this issue and ensures that your brakes remain in peak condition.

References

https://www.tiresplus.com/blog/brakes/what-brake-fluid-does/#:~:text=Brake%20fluid%20is%20the%20liquid,foot%20to%20stop%20your%20car!

https://www.sstire.com/tracy/brake-fluid-important/


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