Re: D.O.T. 3-4 vs. D.O.T. 5 for a '56 Patrician

Posted by PackardV8 On 2015/9/15 14:22:39

DOT 5 (silicone) used in my 56 Executive since 1997 and 30K miles that i know of. The previous owner had converted to DOT 5. I just continued on with it. Swapped out the BTV for a modern unit about 2003.

I've had NO problems whatsoever EXCEPT for the brake lite switch.
Whehter that is due to silicone or not i don't know. A minor inconvenience even if it is due to DOT 5.

When i eleminated the BTV i mounted a MECHANICAL sw. to the brake pedal.

NOTE THE FOLLOWING QUOTE from above post:

" DOT5 was developed by the military as a fluid
for vehicles that are seldom used and stored
most of the time."

The case is made for DOT 5. Verdict: NOT guilty.