I do not understand , never did , advantage of brake fluid in brakes ? Why not hydraulic oil , like construction equipment ? Temp resistance maybe , but water in brake fluid boils . Maybe it was the rubber at the time ( 1920's ) deteriorated in oil . Not now with right stuff .( except German rubber) ( MB junk) Might relate to the change in top cyl fluids in 62 . Better seals , oil resistant, allow oil. Atf and ps fluid are both essentially 10 W oil with additives . Semi auto trans was 10 W . I use silicone exclusively in brakes because military says to . Good enough for me . But silicone oil is like 10 W oil physically . But it loves rubber and other way round . Biggest issue is $ but you can find mil surplus by the half gallon . Maybe one of our mopar engineers knows "why brake fluid ? " . If you do not change religiously in MB brakes fail as in 2000$ worth of fail . Yet I had 37 Packard with original brakes when I bought it that still worked ok . Strange stuff ...
Sent from my iPhone
We've heard this before
about brake fluid.
Anybody know why brake
fluid would be manufacturer used over hydraulic oil. Brake fluid seems
just plain dumb for all kinds of reasons, not the least of which is that it is
hygroscopic for heaven's sake - duh... But we are not
engineers. What do you engineers say?
Since it is available,
today we guess that one should use top of the line true synthetic hydraulic
oil but which brand and exactly which Spec.? On expensive to fix
cars, people today are using more and more Red Line, Royal Purple, Amsoil and
the like.
We are interested in
reading what knowledgeable others have to say.
Sooo what should we do
and why?
A&G
----- Original Message -----
Sent: Saturday, July 09, 2016 3:57
PM
Subject: Re: [Chrysler300] Convertible
top oil
Well Dan, I recently had to replace the convertible
top pump and motor assembly in my 300H covertible from Hydro Electric in
Florida. The original had packed it in last summer while attending a car show
where it couldn’t move the top up or down properly unless we gave it
some manual assistance. I was expecting to get some kind of warranty from them
but they said that it was too old and wouldn’t cover it! I told them that I
had purchased the assembly years before restoring the car but they didn’t buy
that.
Now getting to what oil to use, I prefer using power
steering fluid as it is colorless and less likely to stain anything if you
should develop a leak in the system. The replacement pump and motor received
from them was already filed with automatic tranny fluid (the red stuff). Some
of the early cars used power brake fluid which would be a disaster if a leak
should occur.
Why would you want to replace the oil in the system in your
66 300? I could see doing so if it looks like it’s dirty or?
Cheers from Fern with silver/lilac 300H convertible located
in SE BC
Sent: Saturday, July 09, 2016 12:42 PM
Subject: [Chrysler300] Convertible top oil
Hi all:
Can anyone apprise me of the best oil to use in the hydraulic lift of the
convertible top of my 1966 300? Should I purge the old oil? If so,
what liquid should I use for purging?
Thanks.
Dan Reitz
Bell Canyon,
cA
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