You're quite right Paul.
The difference is , that moisture will not mix with the fluid as DOT 3 and 4
will do.
About the scalding the paint - yes you're right again.
This is my experience, though the damage is not as bad as DOT3 and DOT4.
Cheers,
Hans
----- Original Message -----
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
Cc: <mgs@autox.team.net>
Sent: Saturday, June 11, 2011 3:05 PM
Subject: Re: [Mgs] Hydraulics
> Surely the only advantage of DOT5/silicone is that is doesn't attack
> paintwork, but it's disadvantage is that it is more compressible than
> glycol giving a spongier pedal. Moisture will get into all brake systems
> regardless of fluid type, and it will lower the boiling point of all of
> them. Because silicone isn't compatible with ABS generic car parts places
> like Halfords in the UK don't stock it any more, stocking just DOT4 and
> DOT4.1, the latter having a higher boiling point than DOT4 or DOT5, and
> less compressible than DOT5. However it still attacks paintwork as far as
> I know.
>
> ----- Original Message -----
>> Since over 15 years I use silicone brake fluid in my BGT's brake system.
>> Works well with the combination disks / drums.
>> Never failed and the advantage is, that this fluid is not hygroscopic -
>> i.e. does not attract water.
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