How To Check Brake Fluid
What is the Purpose of Brake Fluid?
Before you learn how to check brake fluid, it is important to understand its purpose. Brake fluid is a hydraulic fluid that aids in the movement of your brake pedal. It also acts as a lubricant for the braking system and prevents corrosion. In most Dayton vehicles, brake fluid is glycol-ether based, but silicone-based (DOT-5) and mineral oil-based (LHM) fluids are available. You can consult your owner’s manual for specifics on which brake fluid your model uses.
3 Tips to Check Brake Fluid
What you’ll need
- Your owner’s manual (for brake fluid type)
- Clean microfiber cloth or paper towel
- Flashlight (helpful for reading the level lines)
- Locate your vehicle’s brake fluid reservoir (usually on the master cylinder near the back of the engine bay). Use your owner’s manual to confirm the exact location, and wipe away any dust around the cap area so debris doesn’t fall into the reservoir.
- On the reservoir you’ll see “minimum” and “maximum” lines. Check the brake fluid level against these markings. If the level is near or below the minimum line, it may be time for service. If you add fluid, do not overfill fill only to the recommended range shown on the reservoir.
- Wondering what color is brake fluid? Fresh fluid is typically clear to light yellow. If it looks dark brown/black (similar to oil), that often indicates contamination and it may be time for a brake fluid flush. If the level is low and the fluid is dark, have the braking system inspected as soon as possible.
What Color is Brake Fluid Normally?
Now that you know how to check your brake fluid, you may be wondering, “What color is brake fluid?” Fresh brake fluid should be mostly clear with a slight yellow tint. This color will naturally change over time as you use your braking system. As mentioned above, a dark oil-like color signifies that your brake fluid has picked up dirt and debris. These contaminants can hinder performance if left untreated.
Signs you may need brake fluid service
- Brake pedal feels soft or spongy
- Longer stopping distances than normal
- Brake warning light is on
- Fluid level keeps dropping between checks
Brake Fluid Service Schedule
A good rule of thumb is to have your brake fluid checked with every oil change, or once a year at minimum. Brake fluid has a four to five-year lifespan, but this can vary greatly depending on the car, driving conditions, and driving habits. When you schedule service with us, our certified technicians will know exactly how to check and change your brake fluid.
Turn to Underriner Honda of Walla Walla for Automotive Care
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