Re: silicone brake fluid

[LtWacko@xxxxxxx]

Silicone brake fluid in a street car is a very bad idea.  Yes it is not 
hydroscopic, but that is a bad thing for a street car.  The moisture in the system 
has to go somewhere.  It tends to pool in the lowest part of your calipers and 
causes them to rust (very bad).  Race brakes are rebuilt all the time.  
Calipers taken apart, new seals.  Constant maintenance.  Definitely not a low 
maintenance choice.  Just use a high quality DOT4 brake fluid and get it changed 
every two years at the most.   If you have your own pressure bleeder (about 
$45), it will take you 1/2 hour of the 17,088 hours in the two years you own the 
car.
 
Rodney
 
> Date: Wed, 11 Jun 2003 00:06:09 -0700
> From: "John C. Bowne" <
jbowne@domain.elided>
> Subject: Slicone brake fluid
>
> I know that the BMW manual calls for 
replacing the brake
> fluid every two
> years.  I have assumed that is because 
regular brake fluid is
> hygroscopic
> and absorbs water from the air.  Is it possible 
to replace
> the regular
> brake fluid with silicone brake fluid that is not 
hygroscopic
> to get longer
> life?  Does BMW approve of this?
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