Do You Need To Replace Brake Fluid Often?

You don't have to replace brake fluid ofter if reservoir has a good seal. If you don't have good seal on the cap of the reservoir, the moisture in the air will get into the fluid and cause brakes to be ineffective when braking. The only time you need to change fluid often is when you are racing. When racing at high speed and hit brake hard, the fluid will get hot. When it get hot with moisture in the fluid, the moisture becomes steam. Remember, air can compress and fluid cannot. When steam in the system, during braking, the pedal will travel all the way in because it compresses. If you are not racing, don't worry about it. If you are concerned, use a syringe and suck the oil fluid out in the reservoir (draw half of the fluid out of the reservoir and fill it up and do it a second time). After you do the second time, Open rear bleeder screws and let it drains out until see clear fluid(don't hit the brake paddle- let gravity do it thing- same for bleeding the brakes). Don't let the reservoir go down half way before fill it. Do the same for the front.