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Board: Porsche - 911 - 997
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Re: Brake fluid
Quote:
MMD said:
Yes, it absorbs water (I dunno why) and the next result is brownish stains on the inner workings which are really corrosion which is slowly ruining the tolerances/precision of the _expensive-to-replace_ brake components.
Brake fluid is hydroscopic, which means it is a substance that absorbs water from it's surroundings, in this case the humidity in the air.
Re: Brake fluid
Quote:
964C2 said:Quote:
MMD said:
Yes, it absorbs water (I dunno why) and the next result is brownish stains on the inner workings which are really corrosion which is slowly ruining the tolerances/precision of the _expensive-to-replace_ brake components.
Brake fluid is hydroscopic, which means it is a substance that absorbs water from it's surroundings, in this case the humidity in the air.
Yeah, but WHY? darn! Don't want to sound like a kid (why,? why,? why,?) But I assume it is petroleum-based product and I thought roughly "oil and water" don't mix."
Seems like we should *never* have to change brake fluid, should stay clean and almost sterile (kidding) since the system is completely closed, except for a tiny vent somewhere.
Re: Brake fluid
Quote:
Dan L said:
A hygroscopic substance readily absorbs water from its surroundings.
(Note spelling)
The similar sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.
dan
You're right, been mixing the "d" for a "g" for years.....
Re: Brake fluid
Quote:
964C2 said:Quote:
Dan L said:
A hygroscopic substance readily absorbs water from its surroundings.
(Note spelling)
The similar sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.
dan
You're right, been mixing the "d" for a "g" for years.....
...as have I!
Re: Brake fluid
Quote:
MMD said:
Yeah, but WHY? darn! Don't want to sound like a kid (why,? why,? why,?) But I assume it is petroleum-based product and I thought roughly "oil and water" don't mix."
Seems like we should *never* have to change brake fluid, should stay clean and almost sterile (kidding) since the system is completely closed, except for a tiny vent somewhere.
http://www.stoptech.com/tech_info/wp_brakefluid_1a.shtml
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