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1970 442 - What PS Fluid?

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Old October 29th, 2018, 10:48 PM
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1970 442 - What PS Fluid?

Internet seems to believe a lot of things. Mostly a BMW guy and they use almost 100% ATF. Looking for something I can pickup at AutoZone or similar. What is the 'proper' fluid?
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Old October 30th, 2018, 12:00 AM
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Pretty much any brand that is labeled as Power Steering Fluid will work.
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Old October 30th, 2018, 12:21 AM
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Agreed. Transmission fluid is often substituted for power steering fluid, and while it apparently will work, from what I researched years ago it doesn't have the same high pressure capabilities/ratings as power steering fluid.
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Old October 30th, 2018, 05:32 AM
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Back in the day it was ATF. There was no such thing as power steering fluid (at least for american cars) until rack and pinion steering came out. Check your owners manual, bet it will say ATF.
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Old October 30th, 2018, 06:26 AM
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i have always used atf BUT try that in a vw your gonna spring leaks from places you didn't even know exist.i developed a leak in my 2000 jetta one day stopped at a parts store and picked up some p.s. fluid.topped it off and took off.about 15 miles down the road it started screaming again,so stopped and checked .hmm empty so topped itoff and look underneath and it was like i was just missing the hole and dumping it on the ground.vw's use mineral oil
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Old October 30th, 2018, 07:08 AM
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Originally Posted by Greg Rogers View Post
Back in the day it was ATF. There was no such thing as power steering fluid (at least for american cars) until rack and pinion steering came out. Check your owners manual, bet it will say ATF.
^^^THIS. The CSMs of the 1960s even say that ATF can be used in PS systems. Look in Chapter 0, in the Chassis Lubrication chart.
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Old October 30th, 2018, 08:03 AM
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This thread is like the internet. Everyone has their choice I guess. Iíll go with power steering fluid.
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Old October 30th, 2018, 08:32 AM
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Originally Posted by dinanm3atl View Post
This thread is like the internet. Everyone has their choice I guess. Iíll go with power steering fluid.
Uh, no. The truth is what the manufacturer recommends, not what people on the internet think.
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Old October 30th, 2018, 10:36 AM
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I have a manual transmission. Can I still use ATF in my PS pump?..
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Old October 30th, 2018, 11:14 AM
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""The fluid recommended for these pumps and gearboxes is Automatic Transmission Fluid. Dextron III or Ford type F. This is what these units were designed for".
Words directly from Marty Preuss.

The big box drool is too thin. I recommend flushing the system every so often especially if its never been done.

.Marty Preuss bought Chip out a couple of years ago....

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Old October 30th, 2018, 11:50 AM
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Originally Posted by joe_padavano View Post
Uh, no. The truth is what the manufacturer recommends, not what people on the internet think.
I get that. I didn't say what people think is right. I said I searched net and got similar results to here. And in many cases on older cars what the manufacturer
recommended in 1970 isn't the best nowadays. Nor is it always easy to obtain. Thus why I asked the question. On top of that plenty of stuff manufacturers recommend
so say is right is not right. Lifetime trans fluid anyone? Oil changes hardly ever? Anyone actually do this stuff on cars? I don't.
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Old November 8th, 2018, 06:14 PM
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Originally Posted by dinanm3atl View Post
I get that. I didn't say what people think is right. I said I searched net and got similar results to here. And in many cases on older cars what the manufacturer
recommended in 1970 isn't the best nowadays. Nor is it always easy to obtain. Thus why I asked the question. On top of that plenty of stuff manufacturers recommend
so say is right is not right. Lifetime trans fluid anyone? Oil changes hardly ever? Anyone actually do this stuff on cars? I don't.
Transmission fluid can be obtained almost anywhere, even convienent stores. Why wouldn't you use what the manufacturer recommends?
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Old November 8th, 2018, 06:39 PM
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I think there is special formulated P.S fluid for stick shift cars.
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Old November 8th, 2018, 07:11 PM
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Originally Posted by Bfg View Post
I think there is special formulated P.S fluid for stick shift cars.
The transmission has absolutely nothing to do with the power steering system. Where did you hear there is a special formulated ps fluid for stick shift cars. That is one of the crazier things I have heard in a while. On the lid of the power steering reservoir on my 54 Olds it say fill with automatic transmission fluid. Then again, it is not a stick shift.
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Old November 9th, 2018, 12:09 AM
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Originally Posted by redoldsman View Post
The transmission has absolutely nothing to do with the power steering system. Where did you hear there is a special formulated ps fluid for stick shift cars. That is one of the crazier things I have heard in a long time.
I think he was funnin' us.
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Old November 9th, 2018, 03:14 PM
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The special fluid is down the same isle as the muffler bearings.
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Old November 10th, 2018, 08:37 AM
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Originally Posted by droldsmorland View Post
""The fluid recommended for these pumps and gearboxes is Automatic Transmission Fluid. Dextron III or Ford type F. This is what these units were designed for".
Words directly from Marty Preuss.

The big box drool is too thin. I recommend flushing the system every so often especially if its never been done.

.Marty Preuss bought Chip out a couple of years ago....

PowerSteering.com
417.374.7627
607 W Kathryn St, Nixa, MO 65714
X2. When I had the pump and box rebuilt by them for my W-30, he said specifically that anything other than ATF will void the warranty and that they will instantly know if anything else was used when they take it apart.
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Old Yesterday, 06:24 AM
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Originally Posted by Bfg View Post
I think there is special formulated P.S fluid for stick shift cars.
LOL Glad someone got my attempt at being funny


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