Most people think about brakes in terms of pads and rotors, the parts that wear down and squeal. Brake fluid rarely gets any attention, but it plays a huge role in how well your car stops.
When you press the brake pedal, you’re pushing fluid through lines to each wheel, and that fluid is what squeezes the brakes against the rotors. The fluid has to stay strong and consistent for your pedal to feel firm and your car to stop quickly.
Here’s the catch. Brake fluid slowly soaks up moisture from the air over time, even in a sealed system. In a humid place like Middle Tennessee, that happens steadily year after year. Water in the fluid lowers the temperature at which it boils, and it causes rust and corrosion inside the brake system.
You won’t usually feel the difference in everyday driving. The problem shows up when you need your brakes the most, like a long downhill stretch, a sudden stop on the interstate or heavy stop-and-go traffic on Mallory Lane at rush hour. Overheated, moisture-filled fluid can make the pedal feel soft or sink, and the car may take longer to stop.
Many manufacturers recommend changing brake fluid every two to three years. Honda and Acura owners may see the number 7 in their maintenance code when it’s due. Old brake fluid often looks dark, though we test it rather than judging by color alone.
A brake fluid service replaces the old fluid with fresh fluid throughout the whole system. It’s an affordable way to protect expensive parts like the anti-lock brake unit and keep your stopping power where it should be.
If you can’t remember the last time your brake fluid was changed, we’ll check it during your next visit. Call Reliable Automotive at (615) 472-1825 or stop by 112 Alpha Dr in Franklin, Monday through Friday from 7 to 5.
