Why is your brake fluid black or brown?

Brake fluid is an important hydraulic liquid which helps your car’s brakes to function correctly. It achieves this by generating hydraulic pressure, which allows the brake pads to push against the rotors. This slows your car down.

Learn more about how brake fluid works

Over time, moisture will find its way into your braking system. This reduces the effectiveness of brake fluid and causes rust, dirt and grime to contaminate your brake fluid. When this happens, the brake fluid will slowly change in colour. The darker it is, the more contaminated it has become. If you notice that your brake fluid has become dark in colour, it is probably time for a brake fluid flush. This will keep your braking system functioning correctly.

It is important to keep brake fluid clean and free of contaminants because dirty or contaminated brake fluid can lead to brake system problems and compromise your safety. When brake fluid becomes too contaminated or degraded, it can cause corrosion and other damage to the brake system components, reduce braking performance, or even cause brake failure.


What colour should brake fluid be?

Brake fluid is a clear to slightly amber color when it is new and in good condition. As it ages and becomes contaminated with dirt, moisture, or other debris, it may become darker in color, ranging from light brown to dark brown or even black.

If you notice that your brake fluid is darker than normal or has a cloudy appearance, you should have it inspected and possibly replaced by a qualified mechanic. Brake fluid should be checked regularly as part of your vehicle’s routine maintenance, and any signs of contamination or deterioration should be addressed promptly.


Brake fluid colour guide – When to replace brake fluid?

If your car’s brake fluid is clear, gold or yellow, it is in good condition and does not need replacement. However, if your brake fluid is dark brown in colour, you should think about getting your brake system flushed very soon. If the brake fluid is black, it should be replaced as soon as possible to prevent problems in your braking system. Driving with dark coloured brake fluid can affect the safety of your vehivcle.

On average, brake fluid should remain in good condition for two years or up to 50,000 km of driving.


Is it safe to drive with contaminated brake fluid?

Problems with your car’s braking system should always be fixed as soon as possible. This is because they can affect your car’s ability to stop when it needs to. Although your car may be able to stop under normal driving conditions, there may be a delayed response when you have to slam on the brakes. This can affect the safety of your vehicle and potentially lead to accidents.

Routinely replacing your brake fluid every two years will ensure that your car is able to stop on time and keep you safe. Be sure to also pay attention to other parts of your braking system such as the brake pads and brake discs.


Brake Fluid Flushing & Replacement in Hamilton

Is your car in need of a brake fluid replacement? If so, we can help! At Grimmer Motors, our team of experienced mechanics can remove your old, dirty brake fluid. We can then replace it with brand new fluid. This will allow for improved safety and a reduced stopping distance.

For brake fluid replacement in Hamilton, contact Grimmer Motors today!


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