Hello All -
When I was restoring my late father's 1957 300C, I am pretty sure
that I was told by several on this listserver to use "any ATF", so
I even sucked out some of the ancient fluid in the reservoir and
saw that it was actually fairly dark, with a pinkish cast. I then
refilled with Castrol generic pink ATF labeled "for use in most
automatic transmissions" - no Type designation. Power steering
now seems to work fine with no leaks, but now I am wondering
whether I should try to replace the new pink ATF with a generic
"Power Steering Fluid" from AutoZone or Pep Boys, etc. I am
rather dismayed to learn of a PS Fluid label advising "do not use
in transmissions", since one of the main components of an
automatic transmission is a PUMP! If PS fluid is OK for the pump
in a PS application, why would it not be applicable to the pump in
a transmission application?? What is the origin of the advice
against mixing PS fluid with ATF (although it could easily make
sense, but I would like to know the REAL reasons and source.).
If the strong consensus is that I should totally replace the ATF
currently in there, what is the suggested best way to get ALL the
old stuff out? I could probably suck a little of it out of the
reservoir, but I know there will still be quite a bit left in the
steering box and high-pressure hose. If I then put in the new
"Power Steering Fluid", I am certain that I will be mixing some
new fluid with the residual ATF, and can't think of a good way to
get 100% new fluid all through the system.
Any firsthand experience? Advice and rationale are welcomed.
Ray Melton Las Cruces, NM 1957 300C cvt
*****************************************************
Power steering fluid.
Don
Sent: Friday, September 18, 2020 11:52
PM
Subject: [Chrysler300] Powersteering
fluid
Hello
group
What
type of oil should be used for power steering
when changing oil?
/Tomas
Turovaara
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