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Guys FYI I have had DOT 5 fluid in my 56 Fury for over a
decade with no problems. The Fury has stainless steel lines, brass lined
cylinders and regular rubber seals and connecting lines.
John Teske
In a message dated 8/28/2011 8:41:45 P.M. Eastern Daylight Time,
whuff@xxxxxxxxxx writes:
One
criticism of silicon fluid that I have heard, but never actually seen
documented, is that BECAUSE it will not absorb water, the moisture can collect
beneath it and corrode brake cylinders. Not sure it that really makes
sense or not.
Bill Huff
At 8/28/201101:32 AM, Dave
Homstad wrote:
I am
not an expert on brake fluids. I have heard that silicone DOT 5 does not
lubricate the rubber/ wheel cylinder wall interface very well, causing wear
of the rubber seal. In cars infrequently driven, like most collector cars,
this should not be an issue. The non-hygroscopic nature of the fluid is more
important. I also have 2 thoughts which could use input:
1. So DOT 5
doesn't mix with 3 or 4. So how is that a problem?
2. For our open
vented and unsealed systems, maybe a 1/4 inch layer of DOT 5 floating on top
of the regular fluid might slow moisture absorbtion.
Dave Homstad
56 Dodge D500
On Sat, Aug 27, 2011 at 4:16 PM, Bob Jasinski
wrote:
DOT 5 fluid (silicone fluid)
)is the only brake fluid that is not hygroscopic (not hydroscopic), like DOT
3 and 4 which are hygroscopic, that is, they attract and retain moisture
within the molecular content of the fluid. I too, have poured
both in a clear jar and sat it on a shelf for months and saw no interaction
between the two. I would not recommend mixing it in a car's
brake system though. Its best to do a thorough flush and refill,
and even better when the system is being rebuilt with new rubber
parts installed.
Bob J
1961 300G convert
running DOT 5 silicone fluid for 32 years.
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