----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----



You are right about the name hygroscopic.  I think I read that in a
Castrol Brake Fluid add a long time ago...   Also, I agree with you on
the other issues about silicone brake fluid.  It is good stuff, but it
is not maintenance free and in most non-performance applications, there
would be little or no gain for all the additional work required.  I used
it for years in sports cars, along with stainless braided lines and that
kind of stuff, but not after they got complex anti-lock brake systems.
Too much work for no perceived or probably not any actual performance
increase.  But, significant extra cost.  Sounds like the "perfect"
product to use in aviation, right?  No way. 

Stick with the proven, "simple" stuff.  Aviation and aircraft is usually
not the place for experimentation (unless you want to be a test pilot). 

I would use Mil-5606 if no other hydraulic fluid was specified.  I can
hardly believe that is the case for the 'coupe.  I would tend stay away
from automotive products.  You don't always know what you're getting
there.

Rich

 

-----Original Message-----
From: John Cooper [mailto:[EMAIL PROTECTED] 
Sent: Saturday, January 05, 2002 20:51
To: [EMAIL PROTECTED]
Subject: Re: [COUPERS] Brake fluid

----[Please read http://ercoupers.com/disclaimer.htm before following
any advice in this forum.]----

In a message dated 1/5/02 1:26:40 PM Eastern Standard Time,
[EMAIL PROTECTED] 
writes:

>  in many of my
>  automobiles, successfully and unsuccessfully.  Besides the
temperature
>  specs, silicone fluid has one great strength in that it is not
>  "hydroscopic" (I think the spelling is right)

Actually, for the grammatically correct, the word is "hyGroscopic".  
HyDroscopic is not a word in the English language, although it is widely
used 
where hygroscopic is intended.  But enough nit picking.  One reason NOT
to 
use silicone based brake fluid in anything except a race car is that,
since 
it does not hold water, any moisture that does get into the system,
through  
condensation or whatever, will remain a bubble of water.  This in turn
will 
boil under extreme conditions, and the result is no brakes due to the
huge 
quantity of vapor in the system.  Racers change the brake fluid
regularly to 
prevent this.  The average car owner doesn't ever change brake fluid...

DOT 3 or DOT 4 fluid, changed out every 3 years is fine for cars.  Not
for 
aircraft, though.  It'll swell the seals up in short order.

John

==^================================================================
This email was sent to: [EMAIL PROTECTED]

EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT
Or send an email to: [EMAIL PROTECTED]

T O P I C A -- Register now to manage your mail!
http://www.topica.com/partner/tag02/register
==^================================================================




<<attachment: winmail.dat>>

Reply via email to