[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: Silicone brake fluid

John Cooper wrote:
> Please be more specific.  Silicone brake fluid is used in many and is
> compatible with many brakes systems.  What do you mean that some seals will
> get damaged?  Silicone is NOT a mineral based fluid, as it sounds like you
> might think.  Silicone Dot 5 fluid is about as inert as you can get.  If you
> have more specific information as to what will happen, I would be very
> interested to know, and what specific materials used in automotive braking
> systems it affects. Thanks,
> Coop


I think what he was getting at was the same type of things that I had
heard.  DOT5 fluid is incompatible with standard DOT3 and DOT4.  If you
want to convert a standard system then you must fanatically flush the
system before filling with the DOT5 and if I remember correctly,
(somebody please correct me otherwise!) DOT5 has an extreme tendency to
absorb either air or water, so that standard flushing and bleed
techniques must be employed much more often than normal.

IMO, it would seem that for the amount of work involved, for a normal
street car, to stick with a good quality, high performance DOT4 fluid
such as Castrol GT-LMA or the ATE Super Blue.


'85 Coupe GT
Welches, OR

Gary G. Erickson
Business Solution Integrators, Inc.
503-702-5789       e-mail: erickson@teleport.com