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United Tire and Service News

Brake Fluid FAQ

3/7/2023 6:44:00 PM | (1752) View Count | Return

Generally, we’re always thinking about how to keep our cars running, and not so much on how to keep our cars stopping. Think about it – how many times have your brakes saved you from accidents and run-ins? Your brakes’ stopping power is directly affected by the brake fluid in your car (also known as hydraulic fluid). Maintaining your brake fluids properly will ensure the safety on the roads for you and other drivers.

What Is Brake Fluid?

Brake fluid is a specially formulated hydraulic fluid that is used in hydraulic brake systems to transfer force from the brake pedal to the brake calipers.
 

What Are the Different Types of Brake Fluid?

There are four main types of brake fluid: DOT 3, DOT 4, DOT 5, and DOT 5.1. Each type has its own unique properties and compatibility with certain types of brake systems.
 

What Does Brake Fluid Do? brake fluid

In short, brake fluid moves different components of your braking system. When you push on your brake, the brake fluid helps deliver that action and pushes on the rotors at the four corners of your vehicle. Your car begins to slow down because of the applied pressure to the wheels.
 
If you are looking for a more technical answer, when you press on the brake pedal, a piston inside the brake caliper also compresses. As this increases the pressure inside the brake lines, the brake fluid is being set into motion. Brake fluid pressure makes the brake rotors squeeze down on brake pads, touching the wheels. This slows the vehicle down and brings the wheels to a stop. 
 

Where Does Brake Fluid Go?

Finding the location of the brake fluid is not as hard as it may seem. To begin, open the hood of your car. On the driver’s side, look for a master cylinder at the back of the engine bay. The reservoir with the brake fluid is right above. Most cars have a transparent reservoir with min and max lines. If your brake liquid is in between these lines, you have nothing to worry about.
 

What Color is Brake Fluid?

The majority of all brake fluid looks the same – it is clear with a yellow tint. If your brake fluid is good, it will remain somewhat clear even if the color may change a bit with time. If your brake fluid is dark brown or black, it’s time to have it flushed and put in new brake fluid.
 

How Often Should I Change My Brake Fluid?

It is generally recommended that you change your brake fluid every two years, regardless of mileage. Although brake fluid is contained in a sealed system and can survive for years, moisture and surrounding air can travel through the system and affect the fluid. However, you should always consult your vehicle's owner's manual for specific recommendations.

What Happens If I Don't Change My Brake Fluid?

Over time, brake fluid can absorb moisture and become contaminated with dirt and other debris, which can lead to decreased braking performance and even brake failure.

There is not one answer for all. While some manufacturers recommend every two years, others say it is not necessary at all. To be sure, get familiar with your manufacturer’s recommendation and always consult your trusted mechanic.
 

Can I Mix Different Types of Brake Fluid?

No, you should never mix different types of brake fluid. Doing so can lead to unpredictable braking performance and damage to your brake system.
 

How Do I Check My Brake Fluid Level?

You can check your brake fluid level by locating the brake fluid reservoir under the hood of your vehicle and checking the fluid level against the markings on the reservoir.
 

What Should I Do If My Brake Fluid Is Low

If your brake fluid level is low, you should have your brake system inspected as soon as possible. Low brake fluid can indicate a leak in the brake system, which can lead to decreased braking performance or brake failure.
 

Can I Use Water Or Other Fluids In Place Of Brake Fluid?

No, you should never use water or other fluids in place of brake fluid. Only use brake fluid that is recommended by your vehicle's manufacturer.
 

What Should I Do If My Brake Fluid Is Discolored Or Has Particles In It?

If your brake fluid is discolored or has particles in it, you should have your brake system inspected as soon as possible. Discolored or contaminated brake fluid can indicate a problem with your brake system.
 

Can I Reuse Old Brake Fluid?

No, you should never reuse old brake fluid. Brake fluid can become contaminated over time, and reusing it can lead to decreased braking performance or brake failure.
 

Schedule Brake Fluid Refill Today

The stopping power of your car directly relies on the condition of your brake fluid. Properly looking after your brake fluid is important, without proper maintenance your car simply will not be able to stop when pressure is applied to the brake pedal.  If your car needs brake fluid added more than every few months, then you may be experiencing a leak. As brakes are one of the most crucial elements of your car, detection, and elimination of any problem should be done in a timely manner at a certified service center, like one of our 13 United Tire & Service locations.
 
We recommend checking your brake fluid once a year to make sure it is at the correct levels, so feel free to make an appointment and stop into one of our locations. One of our experienced technicians will be more than happy to make sure your car is 100% safe for the road. 
 
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At United Tire & Service, our staff is here to serve customers throughout Pennsylvania. We offer top-quality auto repair services done by expert technicians. From an oil change or brake repair to auto air conditioning repair, muffler repair, engine diagnostics, wheel alignment, car batteries, fleet repair, tire repair, suspension repair and Pennsylvania state vehicle inspections, we do it all. We also stock a wide selection of tires from all the top brands in the industry including Goodyear Tires, Dunlop Tires, Kelly Tires, and many more. Schedule an appointment with us today at one of our locations in Concordville, Downingtown, Emmaus, Feasterville, Phoenixville, Southampton, Paoli, West Chester or Willow Grove, PA. We are your number one source for top quality, affordable auto repair and tires!