Three Brake Fluid Types Explained

Three Brake Fluid Types Explained


Brake fluids are a crucial part of a vehicle’s braking system. They must maintain a certain viscosity across a wide range of temperatures. They are also important in anti-lock braking systems and vehicles with micro-valves, such as in stability control and traction systems. If not changed regularly, they may become corroded and decrease braking performance. Choosing the best brake fluid for your vehicle and keeping it fresh is important. There are three main types of brake fluid that we will discuss below. See this to choose the right brake fluid manufacturers in UAE.

DOT 3:

DOT 3 is the most commonly used brake fluid and is highly corrosive. It is recommended that it be replaced every few years. It is amber in color and has a low wet boiling point. It can be easily found at most automotive parts stores. It is inexpensive and a good choice for basic brake fluid. However, there are better choices for daily driving. It can create air bubbles and foam, affecting the braking system’s overall performance.

The boiling point of the brake fluid determines the type of fluid that is most suitable. Glycol-based brake fluids have a wet boiling point of 284 degrees Fahrenheit. These fluids are hygroscopic, which means they absorb moisture from the air. If too much moisture is in the system, the braking process will become difficult. A silicone-based brake fluid will not absorb water. This brake fluid is more durable and does not damage the paint on the car.

DOT 4:

DOT 4 is a glycol-based brake fluid that has additives to help boost the boiling point. It is slightly more expensive than DOT 3 but still affordable. It is also a more advanced product, containing more chemicals than DOT 3. It is recommended for vehicles that have anti-lock brakes and other braking systems. In addition, it has lower water content and is available in low-viscosity varieties.

DOT 5.1:

DOT 5.1 is a non-silicone version of DOT 5. It is compatible with DOT 3 or DOT 4. It is a less-expensive alternative to DOT 5 and is generally rated at the same boiling points. It is a low-viscosity fluid that meets ISO 4925 class 6 viscosity requirements. It is used in many countries. DOT 5.1 is not recommended for professional race cars.