DOT 3 brake fluid boils around 401°F when it’s fresh, but that drops to like 284°F when it gets old and absorbs water.
What Happens If DOT 3 Brake Fluid Boils?
When DOT 3 brake fluid boils, it turns into a gas.
This gas can’t push the brake piston as well as the liquid brake fluid.
So, when you hit the brake pedal, it feels soft and spongy, which is called “brake fade.”
It’s like trying to stop a car with a wet sponge.
That’s scary.
Overheating your brakes can cause them to fail.
If you keep using your brakes when the fluid is boiling, the brake system can overheat even more.
This can damage parts like brake pads, rotors, and even the brake calipers.
However, replacing these parts can be expensive.
Driving with boiling brake fluid is dangerous.
You might not be able to stop your car when you need to, which can lead to accidents.
It’s important to avoid overheating your brakes by giving them time to cool down after heavy braking, like going downhill.
So, how can you tell if your brake fluid is boiling? Look out for a soft, spongy brake pedal, especially after heavy braking.
If you notice this, stop driving and let your brakes cool down.
So, If the problem continues, it’s time to check your brake fluid level and condition.
Do not forget, that preventing brake fluid from boiling is essential.
How Often Should I Change My DOT 3 Brake Fluid?
Generally, it’s recommended to change your DOT 3 brake fluid every 2 years.
This is a good rule of thumb, but it can vary depending on a few things.
If you live in a really hot or cold climate, the brake fluid can break down faster.
Also, if you do a lot of heavy braking, like driving in the mountains or towing something heavy, you might need to change it more often.
But, how can you tell if your brake fluid is bad?
Well, it should be clear and dry.
If it’s dark, brown, or has water in it, it’s time for a change.
You can also check the brake fluid level in the reservoir.
It should be between the “full” and “add” lines.
With that said, changing your brake fluid is a job best left to a mechanic.