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Brake Fluid Basics and Maintenance

Published Mar 21, 25
1 min read

The Importance of Brake Fluid

Brake fluid is vital for safe braking, transferring pedal force to the brakes. Degraded fluid reduces braking effectiveness.

Signs Your Brake Fluid Needs Attention

  • Soft or spongy brake pedal : A soft pedal may indicate contaminated brake fluid.
  • Anti-lock brake system light: Modern vehicles may alert you when brake fluid is low or compromised.
  • Unusual brake performance : If braking feels inconsistent or delayed, it’s time for a check-up.
  • Dark or dirty fluid : Healthy brake fluid is typically clear or light yellow; dark fluid signals contamination.

Brake Fluid Replacement Frequency

Most manufacturers recommend changing brake fluid every two to three years or every 30,000 miles. However, driving habits and local conditions—like St. Louis' fluctuating weather—can impact this timeline. Regular brake inspections will help determine when it’s time for a change.

DIY vs. Professional Brake Fluid Maintenance

Checking fluid levels is simple, but replacement needs professional bleeding.



Car-X: Your St. Louis Brake Experts

Car-X St. Louis offers complete brake fluid services for your safety. Book your service now.