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Use the right brake fluid.


BFS BFS Bundesamt Für Statistik
BfS Bundesamt für Strahlenschutz (German: federal office for radiation protection)
BFS Bowling for Soup (band)
BFS Bankable Feasibility Study
BFS British Fertility Society
, provided under MIL-PRF-46176B and also known as DOT 5 brake fluid brake fluid nlíquido de frenos

brake fluid nBremsflüssigkeit f 
, replaced the old brake fluid. V-V-680, also known as DOT 3 or DOT 4. BFS is more stable at high temperatures and won't absorb water.

So, when it's time It's Time was a successful political campaign run by the Australian Labor Party (ALP) under Gough Whitlam at the 1972 election in Australia. Campaigning on the perceived need for change after 23 years of conservative (Liberal Party of Australia) government, Labor put forward a  to add brake fluid to a master cylinder Noun 1. master cylinder - a cylinder that contains brake fluid that is compressed by a piston
brake cylinder, hydraulic brake cylinder

piston chamber, cylinder - a chamber within which piston moves
 containing BFS, make sure that what you add is also BFS. A combination of BFS with old fluids will still absorb water, creating corrosion and deposits that cause stopping problems.

Mixing old brake fluid with BFS can also lead to seal leakage LEAKAGE. The waste which has taken place in liquids, by their escaping out of the casks or vessels in which they were kept. By the act of March 2, 1799, s. 59, 1 Story's L. U. S, 625, it is provided that there be an allowance of two per cent for leakage, on the quantity which shall appear , because the seal protective properties of BFS are diluted di·lute  
tr.v. di·lut·ed, di·lut·ing, di·lutes
1. To make thinner or less concentrated by adding a liquid such as water.

2. To lessen the force, strength, purity, or brilliance of, especially by admixture.
 by the old stuff.

So how do you tell which fluid is which? Go by the color, if you can. BFS is purple or blue in color, though the dye that gives it the color can break down. Then the fluid in the master cylinder becomes brown or amber.

There's no cause for alarm if the color varies--the BFS is still good. But if the color is not purple or blue, you can't tell what kind of fluid is in your brake system.

BFS + Unknown Fluid

Try mixing a few tablespoons of the unknown fluid with a little BFS. If the two mix, the unknown fluid is BFS, too. But if the two fluids separate into layers, the unknown stuff is DOT 3 or 4. Your vehicle needs to have the brake fluid changed.

Unknown Fluid + Water

Put some of the unknown fluid in a jar with a little water and shake it. BFS does not mix with water, and you'll see distinct layers. DOT 3 and 4 fluids, on the other hand, do mix with water and remain mixed. You won't see separate layers.

KEEP THIS INFO ABOUT SILICONE silicone, polymer in which atoms of silicon and oxygen alternate in a chain; various organic radicals, such as the methyl group, CH3, are bound to the silicon atoms.  BRAKE FLUID (BFS) IN MIND ...

... ESPECIALLY WHEN THE TEMPERATURE HITS TRIPLE DIGITS.

BFS is purple or blue

Check brake fluid for color

HERE ARE TWO OTHER WAYS TO TELL WHAT KIND OF BRAKE FLUID YOU HAVE ...

Mix? Both BFS No mix? DOT 3 or 4

Mix? DOT 3 or 4 No Mix? BFS

DOT 3 OR 4 FLUIDS SHOULD BE FLUSHED

SEE YOUR TM FOR DETAILS.
COPYRIGHT 2005 PS Magazine
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2005, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Article Details
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Title Annotation:aircraft maintenance
Publication:PS, the Preventive Maintenance Monthly
Article Type:Brief Article
Geographic Code:1USA
Date:Jul 1, 2005
Words:356
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