[TR] Changing from DOT 3 to DOT 5 Fluif

[Geo Hahn]

Looking into the BCF archives I see I posted a couple of years ago when it
was postulated that DOT5 was causing premature failure of the TR3A brake
light switches...


*> That's what they seem to be saying. I'll be in the test group on this
one as I have DOT5*
*> and the switch sold by Moss -- Intermotor brand p/n 51620, made in
England.

> Switch installed 9/9/2009, 87,853 miles. Now at 92,997. So far, so good. *

**
That switch is still functioning at 98,000 miles.  Still have to say 'so
far so good' -- hope I haven't jinxed it.

Geo


On Tue, May 7, 2013 at 2:02 PM, Randall <tr3driver at ca.rr.com> wrote:

> FWIW, I had much the same experience.  The original switch on my TR3A
> lasted for several years after switching to DOT 5 (long enough that I did
> not associate it's failure with the DOT 5).  Several replacements from
> different sources (including a switch from a Ford pickup truck sourced
> through FLAPS) all failed within a year.  I thought at the time that the
> failures might be related to the higher power bulbs I use for taillights.
>  I finally solved the problem on the 3A by mounting a mechanical switch on
> the pedal box, which was still working fine when the car got wrecked about
> 5 years later.
>
> Likewise, the original switch in the current TR3 was still working fine
> when it came to me; and failed within a few months after converting to DOT
> 5...