[6pack] DOT 5 leads to hydraulic component failures

David Friedlander forzion7 at gmail.com
Fri Feb 8 16:28:30 MST 2013


Interesting, Jerry. I've been using DOT5 for three years now, with little
or no problem. No problem for the paint wither, if I spill some... I'm sure
others out there have used DOT5 with no problem(s) far longer than I
have...
Little if any moisture absorption, too...

Dave
'74 Six w/A-OD + TBI


On Fri, Feb 8, 2013 at 6:08 PM, Jerry Shaw <slowtoaccept at yahoo.com> wrote:

> This is probably old news, but I have just had two hydraulic component
> failures using DOT 5. Now I understand from Leighton of British Car Parts
> Northwest www.bpnorthwest.com that quote, b  None of the cylinder
> manufactures (Girling, TRW, AP, ATE) recommend or will warranty cylinders
> that
> have been used with DOT 5. They state the cylinders are not designed for
> use
> with DOT 5 fluid which will lead to failure. One reason is the DOT 5 fluid
> does not have as high lubricity as the DOT 4 which will leave to pre-mature
> seal failure.b
>
> I hope that suppliers of DOT 5 have disclaimers. Ib ve probably missed that
> email.
>
> Jerry
>
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