Re: [FWDLK] Dot 5 silicone brake fluid

I have silicone in many vehicles. IMHO there is no chance of moisture getting in the system because silicone repels moisture. It is also a good lubricant for rubber. On the bad side it does soften some rubber and the chances of leaks are greater. It is in my 48 Chrysler for at least 12 yrs. and the outside of the wheel cyls. look good.

Paul A. Schmidt

-----Original Message-----
From: J. Johnson <johnaire@xxxxxxxxxxx>
To: L-FORWARDLOOK@xxxxxxxxxxxxx <L-FORWARDLOOK@xxxxxxxxxxxxx>
Date: Sunday, August 01, 1999 2:31 PM
Subject: [FWDLK] Dot 5 silicone brake fluid

To all

This is what my friend found on the internet under Popular Mechanics on the Dot 5 Silicone brake fluid. I have had this in my 55 Plymouth for 10 years with out a single problem with the fluid or seals. Does any one have experience with this Dot 5 Silicone brake fluid? And if you have any info on it let the List know as we can all learn form others. The web site is http://popularmechanics.com/ I have found it to be great as the cylinders are nice and shiny and no moisture in them and all looks very nice and normal. Maybe this winter I will take the back brakes apart and look inside there as the back haven't been apart since 1989 when I put the Dot 5 in.

Jack Johnson 55 Plymouth Belvedere

My friend Terry wrote:

Warning: There are silicone brake fluids (labeled DOT 5) that are immune to moisture (5.1 is nonsilicone, but DOT 3 and 4 are what you should use). Don't even think about using DOT 5 silicone fluid in an automotive braking system, because it may cause faster wear of the seals, and if enough water gets into a system it could cause loss of pedal. DOT 5 and 5.1 have application in some racing vehicles.