No subject

boiling point which is fine if you never open the container or if you 
live in a lab where you have very controlled conditions. For the real 
world the wet boiling point is a much better indicator of how the 
stuff will perform. For the money the ATE super blue and gold stuff 
has a very high wet boiling point and about 8$ a liter(see chart) 
probably the best overall stuff is Castrol SRF which is about 75$ a 
liter!!   Also the fluid should be replaced at least every 2 years, 
more often if you are really hard on your brakes and before any track 
driving. and don't forget the clutch. I remember the first time I 
flushed mine the fluid looked like coffee!

Also, Eugenio Thompson offered this (edited) information:

<begin quote>
Our  firm produces and sells brake fluid to Mobil Oil , Bardahl,
Esso , Exxon , Valvoline ,Shell , Castrol , Agip , Nissan , 
Volkswagen ,
BMW , etc, etc, etc....even to the USAirforce to be used in some 
airplane
breaking applications. They all (Mobil...etc) just rebottle it , and 
in
some instances , mix it with some aditional additives and compounds, 
and
then rebottle it .  They do not produce  it!

OK....returning to our concern , we first have to understand what is
"hygroscopic" and what is "boiling point".....
Hygroscopic...is the ability of a compound or matter to absorb AND 
retain
water ,  and boiling point is the temperature at which a compound or 
matter
boils and changes its  stage to vapor.

The  crude truth is that ALL  brands of brake fluids are "in the same
amount, or  way" hygroscopic! Is there a less hygroscopic brand ?
NO...due to the nature of the brake fluid ; since it is a derivate 
 of
Ethylene Oxide. (By nature , it absorbs and retains water)

Do all brands  differ at their boling point ? YES! And
it depends on the additives that each "bottler" adds  or blends to 
the
brake fluid !

NOW....another issue that you are missing.  It exists a 
classification
of brake fluids that take in consideration several variables 
(hygroscopy
and boiling point are just two of them !).....so I will note only two 
of
them, which are the most common and accepted in the automotive
industry.....D.O.T. 3  and   D.O.T.  4. Which one is the best ?  DOT 
4
!!! (It has a much higher boiling point than DOT 3)

Unfortunately , in America  you only can find  D.O.T.  3  brake 
fluids
......which brand  is the best ?? Try to find one from  "Wagner" or 
"Allied
Signal"  brake fluids !!!  They are the best !!  Do not let a company 
 name
or  heritage drive your desision; Im talking about Shell , Valvoline 
,
CASTROL !!!!! etc....remember , their additives is the secret ..so
honestly  get one from Wagner or Allied Signal.

<end quote>

Thanks for the info, friends!
************************************
Al Powell
Fort Collins, CO
powellae at home.com
************************************