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Re: Power Steering Fluid
[Re: HotRodRailroader]
#1618173
05/13/14 02:47 PM
05/13/14 02:47 PM
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Joined: Jan 2003
Posts: 25,808
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,808
Rio Linda, CA
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So, you're saying that the pressures have changed since ATF was the recommended fluid? FSM's say they're the same. Viscosity? Nope.
The INTERNET, the MISinformation superhighway
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Re: Power Steering Fluid
[Re: jglen490]
#1618178
05/13/14 05:23 PM
05/13/14 05:23 PM
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Joined: Jan 2003
Posts: 25,808
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,808
Rio Linda, CA
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The early ATF contained sperm oil, the use of which was outlawed in the late sixties; this required the development of costly additives to serve as a substitute for the whale oil.
I suspect that the use of dedicated P/S fluid came about because the exotic additives in ATF simply aren't needed in P/S systems. (that doesn't mean it's detrimental to use it)
The INTERNET, the MISinformation superhighway
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Re: Power Steering Fluid
[Re: jglen490]
#1618183
05/14/14 06:56 PM
05/14/14 06:56 PM
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Joined: Oct 2007
Posts: 3,890
Oregon
hooziewhatsit
master
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master
Joined: Oct 2007
Posts: 3,890
Oregon
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I recently got a rebuilt box for my 72 W200, and asked them about ATF/PS fluid. "We are good with ATF your system was designed around using ATF for 30 plus years until someone decided they had something better, but any of the p/s fluids are good." I put in ATF since I had a couple quarts on hand. 
If you ever find yourself in a fair fight, your tactics suck.
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Re: Power Steering Fluid
[Re: GODSCOUNTRY340]
#1618185
05/15/14 06:46 PM
05/15/14 06:46 PM
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Joined: Jan 2003
Posts: 5,903
Athens, Greece
Pyper70
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,903
Athens, Greece
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I went to a few places today to ask for Castrol GT PS Fluid...every place I went to...the kid pulled Dexron-Mercon III off the shelf...and I shook my head and educated them...the owners of the shops stood by the employee...Finally I drove 45 miles today to a Canadian guy who brings parts from Montreal here...and bought 6 bottles of this stuff. Its been sitting on the shelf so long, the bottles have yellowed.
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
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Re: Power Steering Fluid
[Re: Pyper70]
#1618186
05/15/14 07:32 PM
05/15/14 07:32 PM
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Joined: Jun 2006
Posts: 5,162
CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,162
CT
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There are still some late model cars that call for ATF for the power steering systems, most notably Subaru.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Power Steering Fluid
[Re: GODSCOUNTRY340]
#1618188
05/15/14 08:06 PM
05/15/14 08:06 PM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Quote:
Nice try Quint, but it's a power steering pump from a 1968 Chebby truck.
Yep, Lots of Chevy trucks of that era and Later, had the ATF stamped PS cap. Even saw a similer cap on a Chevy 10 ton Dump truck. Similer pumps but power steering box was huge and expensive.
GM had No worries using Tranny fluid in the PS units. Heck They Even Stamped the Caps.  
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