Brake fluid is extremely important for your vehicle’s safety as it facilitates coordination between your foot and the brake pads. In this blog, we’ll discuss the significance of brake fluid, its composition, maintenance and when you should visit a car mechanic in Wantirna to have it checked.
What is brake fluid?
Brake fluid is a hydraulic liquid which is used for converting the pressure from your foot on the brake pedal into the stopping power needed to ensure a safe and controlled drive. Typically glycol-ether or silicone-based, this fluid operates in high-temperature, high-pressure conditions, facilitating the smooth transfer of force that brings your vehicle to a halt.
Types of Brake Fluid
Two primary classifications govern brake fluid: DOT3 and DOT4. These are classified by the Department of Transportation (DOT), Furthermore, there are two more varieties; DOT 5 and DOT 5.1. DOT 5 fluids are silicone-based. They find common use in vehicles that experience extended periods of inactivity, such as collector cars or military vehicles. DOT 5.1 fluids are made of borate water and glycol.
DOT3 Brake Fluid:
DOT3 brake fluid is predominantly glycol-ether-based, a kind of liquid that absorbs water over time. This composition includes additives to enhance its lubricating properties and prevent corrosion within the braking system.
DOT3 brake fluid has a boiling point ranging between 401°F to 446°F (205°C to 230°C). While this boiling point is sufficient for typical driving conditions, it may be susceptible to boiling under more extreme situations.
As a result, this type of fluid is well-suited for standard driving conditions and is commonly found in everyday vehicles. It’s cost-effective and fulfils the requirements of most passenger cars. This is why vehicle manufacturers will generally recommend DOT3 for regular driving scenarios. However, it’s important to adhere to your specific vehicle’s recommendations outlined in the owner’s manual.
DOT4 brake fluid
DOT4 brake fluid is also glycol-ether-based. However, it includes additional borate esters, giving it an elevated boiling point compared to DOT3. This is typically ranging between 446°F to 500°F (230°C to 260°C). This increased resistance to heat makes it suitable for more demanding conditions such as high-performance driving and heavy-duty applications. Its superior resistance to brake fade under extreme temperatures makes it ideal for vehicles subjected to increased stress levels.
Manufacturers recommend DOT4 for vehicles engaged in performance driving. It provides an extra margin of safety under demanding circumstances.
Significance of brake fluid
Brake fluid is a critical component of a vehicle’s braking system. It plays a key role in ensuring safe and effective operation. Its importance can be understood through the following key aspects:
- Hydraulic transmission of force:
Brake fluid is a hydraulic medium that facilitates the transmission of force from the brake pedal to the brake components.
- Prevention of corrosion and rust:
Brake fluid contains additives that help prevent corrosion and rust within the braking system. This is crucial for maintaining the quality of brake components, including the master cylinder, brake lines, and callipers.
- Heat dissipation:
The braking process generates significant heat, especially during heavy use. Brake fluid’s ability to withstand high temperatures without boiling is essential. Boiling brake fluid can lead to a phenomenon known as brake fade, where the braking efficiency diminishes.
- Seal lubrication:
Brake fluid also serves as a lubricant for the seals within the braking system. Proper lubrication is important for ensuring that these seals remain effective and prevent fluid leaks.
- Moisture absorption:
Brake fluid has the ability to absorb moisture over time. While this moisture absorption is one of the reasons why regular fluid changes are necessary, it also helps prevent water accumulation within the braking system, which could lead to corrosion.
- Maintaining brake performance:
The condition and quality of brake fluid directly impact the overall performance of the braking system. Contaminated or degraded fluid can compromise braking efficiency, potentially leading to unsafe driving conditions. Hence, it is important to get in touch with a trustworthy car mechanic in Wantirna to get your brake fluids checked.
- Compatibility with anti-lock braking systems (ABS):
Brake fluid must be compatible with advanced braking systems like ABS. Different brake fluid types, such as DOT3, DOT4, DOT 5 and DOT 5.1 offer different boiling points to meet the demands of modern braking systems.
- Safety assurance:
A well-maintained braking system, with the right type and quality of brake fluid, ensures that a vehicle can stop reliably. This can greatly minimise the risk of accidents and make the roads a safer place for everyone.
In conclusion, brake fluid is very important for providing a secure driving experience. Regular inspections with a roadworthy service in Ferntree Gully, adherence to change intervals, and professional maintenance are essential practices to uphold the reliability and safety of your vehicle’s braking performance.
