I started about 15 years ago and replace the fluid in my triumph Bonneville
with DOT 5 silicone and it worked fine. The next car I changed it on was my
wife's Series III XJ6 when I did a complete brake job on that car, no
problems. I then restored my 77 MGB and used it on that car and no problem.
Several years ago I decided to do the brakes on my E-type and I flushed the
system (E-types have 2 master cylinders) with about 3 quarts of alcohol and
then filled and purged the system with DOT 5, works great. 2 years ago when
I built the TR6 race car I used DOT 5 and have had no problems ( I installed
uprated axels up front). Last year I restored an Austin America for my
daughter and the brakes are fine!
I've had very good luck with DOT 5 silicone and think the key is to having
the system free from any other fluids, and would always recommend flushing
with alcohol if necessary.
I'm concerned about why someone is stating to stay away from it for racing.
What is the problems associated with racing that would not be good for DOT
5? Or is this based on one persons experience? I've heard the stories of
the brakes binding up when switched to DOT 5, but I think these are due to
error on the part of the installer or a problem that already existed in the
Just my opinion and I've got DOT 5 in everything except my LR Disco because
I don't know if it's compatible with anti-lock pumps or not.
----- Original Message -----
From: "Dave Riddle" <email@example.com>
To: <firstname.lastname@example.org>; <email@example.com>
Sent: Monday, June 07, 2004 5:16 PM
Subject: Dot 3, 4, 5 or 5.1
> One of our local Triumph Club members is just finishing a resto job on his
> TR3 and is pondering which brake fluid to go with. The system has been
> either replaced or completely flushed so there is no issue of going with
> Which do you guys recommend? Or why "not" to use a particular fluid.
> This is for a non-racing application.