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Path: utzoo!watmath!clyde!burl!ulysses!harpo!ihnp4!ihuxk!rs55611
From: rs55611@ihuxk.UUCP (Robert E. Schleicher)
Newsgroups: net.auto
Subject: Re: indestructible autos
Message-ID: <611@ihuxk.UUCP>
Date: Thu, 26-Apr-84 14:00:06 EST
Article-I.D.: ihuxk.611
Posted: Thu Apr 26 14:00:06 1984
Date-Received: Fri, 27-Apr-84 05:29:33 EST
References: <1769@sdccsu3.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 14

I didn't think that all DOT 5 brake fluid was silicone based.
In other words, silicone brake fluids are rated DOT 5, but not
all DOT 5 fluids are silicone.  In particular, I think that
Castrol/Girling brake fluid is DOT 5, but is not silicone-based.
Thus, the Castrol fluid doesn't provide all of the advantages of a silicone
fluid.  What it IS good for is that it won't cause damage to natural rubber
brake seals like those used in many British sports cars.  Dot 3 fluid is
designed with neoprene seals in mind.

Is this right?

Bob Schleicher
ihuxk!rs55611
AT&T Bell Laboratories, Naperville, ILL.