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Re-using Silicon brake fluid?

To: spitfires@autox.team.net
Subject: Re-using Silicon brake fluid?
From: Barry Schwartz <v6spitfireguy@cox.net>
Date: Sat, 22 Jul 2006 05:57:29 -0700
Now before you start the flames, I am quite aware of why you don't re-use
old conventional brake fluid, and am not in anyway recommending to do this
- but...I was bleeding the wifes Mustang brakes the other day, after
replacing the brake fluid for its 30k routine maintenance but I got to
thinking (which in my case can be dangerous) .  The reason you change this
fluid is because it gets contaminated with some small particles of stuff,
but the main reason is it also absorbs water reducing the effectiveness of
it by lowering the boiling point  It doesn't really "wear" out.  However
Silicon fluid does not absorb water.  So if thats the case, could one
reuse the old stuff that you bleed out by running it through a filter (say
a good fuel filter) to sort out any particles big enough to do any harm?
This stuff is fairly expensive and hard to get rid of, and recycling it
would make sense if possible, especially with 4 of my vehicles using it  -
I haven't really seen anything that states to NOT reuse old Silicon fluid,
only old Dot 3, 4 etc - I am not (at this stage) really contemplating doing
this, but if I don't find any information specifically advising against it
I may try it on something with low risk - like a clutch system or some such
thing 
Barry Schwartz
San Diego, CA


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