answersLogoWhite

0


Best Answer

Brake fluid is a hygroscopic liquid, which means that it gradually absorbs water from the atmosphere. This process causes the boiling point of the brake fluid to reduce and this can result in the brake fluid boiling and turning to a gas under prolonged heavy braking (know as a vapor lock).

Once the brake fluid becomes saturated with water the pressure of braking can cause the moisture to be forced out of the brake fluid, this moisture can speed up internal corrosion of the brake cylinders eventually causing them to seize up.

Most vehicle and brake fluid manufacturers recommend that the fluid should be completely changed every 2 years regardless of how many miles a vehicle uses. Failure to do in in a new car risks voiding the car's warranty.

The two year limit if fairly conservative as it is based on a worst case scenario of the fluid being exposed to very high humidity all the time. As an alternative to regular two yearly fluid changes a sample of the fluid can be taken every 6 months (after the first 2 years) and its boiling point tested, once the boiling point falls below that specified by the fluid manufacturer the fluid must be changed. This process will usually allow you to increase the interval between changes, however few service centers have the necessary equipment and expertise to carry out this test properly

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: When and why should you change your brake fluid?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How often do you need to do a power steering fluid change and a brake fluid change?

PS should be 18000 miles and brake fluid about 30000 miles PS should be 18000 miles and brake fluid about 30000 miles


How do I change my brake fluid?

You should flush and replace the brake fluid in your brake system every two years. You can change your own brake fluid, but service facilities now do this with brake flushing machines. If you find have a brake fluid leak or you have to bleed your brakes, youll have to restore the brake fluid in your master cylinder to its proper level. Here are some things that you should know about buying and using brake fluid


Should you change your brake fluid?

eventually, yes. brake fluid will absorb moisture from the air which degrades its performance.


Should mechanic change brake fluid when he puts new brake pads on?

yes he absolutely should.


What should you do if you accidentally poured brake fluid in the oil reservoir?

Change oil and filter


When should you change your brake fluid?

you should consider changing your brake fluid every half an hour if you do not do this your car will seasup and will not be able to start your car u should alsio copnsider shagging your wife every now and then lol


What are the properties of brake fluid?

Brake fluid should have low freezing point


Do you need to replace the brake fluid on a 2006 Toyota Sienna?

The best answer is to ask your local Toyota dealer. The alternative answer would be to screw the cap off your tank in the engine bay that says brake fluid. The fluid on the stick should be a clear light brown. When you touch it the fluid should not be slippery, greasy, or discolored. If there is any sediment in there then change it right away and make sure to clean out the fluid reservoir. Also change your brake fluid every two years and flush out the brake lines for superior maintenance.


Why does your brake caliper lockup?

It has probably rusted inside from moisture contamination. Do you change your brake fluid at least every 50,000 miles? Brake fluid attracts moisture and moisture destroys calibers. Replace the caliber and change your brake fluid.


Where is the brake fluid reservoir for a Ford Focus?

how change brake fluid . i have ford focus lx 2000.ans how change air filter.


What brake fluid should be used on a mercury sable?

DOT 3 brake fluid


Can you change your brake fluid without bleeding them?

no.