How Often Should I Change My Brake Fluid?

Brake Fluid Service Video


Hello again. Dallas Council back today from AAMCO Transmissions of Venice and today, I want to talk to you about a portion of your car’s braking system that most people are either unaware of or they just let completely go by the wayside and ignore.

Most everyone is aware that their car’s braking system has a set of brake pads and brake rotors. What most people don’t realize is that those pads and rotors are applied hydraulically through the car’s braking system and just like with any other type of hydraulic system, fluid is required to not only lubricate but also disperse heat. And over time in miles, this fluid will wear out and require servicing as well.

Most brake fluid will need to be changed every 30,000 to 50,000 miles or as described by your car manufacturer’s maintenance schedule. Your mechanical auto repair facility should be testing your brake fluid at every oil change to identify if there are problems developing. If so, they should discuss the possibility of having it serviced.

So I just wanted to show you today so you know and you can also check yourself. Very easy. By just popping open your car’s brake reservoir, looking down in there. If the fluid looks like this, you’re in great shape. This is brand new DOT 3 brake fluid that we pour directly out of an unopened container. What will happen though is over time in miles, that fluid will lose viscosity. It will begin to darken. It will also get contaminated with linings from the braking system from the hoses and various components involved in operating the braking system.

As it deteriorates, it will look like this. It gets that rusty color to it, very brown, and also will begin to thicken up. At this point, you are definitely, definitely in need of service. This brake fluid here came out of a vehicle that had 120,000 miles on it and the brake fluid had never been changed. So if you open up your reservoir and you’re seeing the dark-colored fluid, it is definitely time to have your brake system serviced. Just again so you have a side by side comparison, this is brand new brake fluid in comparison to brake fluid with 100 plus thousand miles on it that has never been changed.

Most brake fluid flushes will be anywhere from 50 to 100 bucks depending on the size and capacity of the system. Again, a good rule of thumb is every 30,000 to 50,000 miles or if you have a repair shop or a mechanic that[pullquote style=”right” quote=”dark”]Wondering how your brake fluid is holding up? Click here for a free inspection…[/pullquote] you trust and you go to on a regular basis, make sure he’s at least checking it for you.

So again, this is Dallas from AAMCO Transmissions of Venice today discussing your car’s braking system. Well, we want to remind you that going from 0 to 60 in your car is impressive but 60 to 0 is priceless. Thanks for tuning in and have a great day.

Me Showing a Sample of Brake Fluid


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