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Power steering fluid vs. ATF

Discussion in 'The Garage' started by opfor2, Jul 2, 2006.

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Power Steering Fluid Vs. ATF

  1. Power steering Fluid

    41 vote(s)
    65.1%
  2. ATF

    22 vote(s)
    34.9%
  1. opfor2

    opfor2 1/2 ton status

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    How many of you Guys and Girls out there use ATF inside of there power steering pumps instead of power steering fluid?
     
  2. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    I use ATF, mainly because my box is bleeding

    I recommend P/S fluid if there are zero leaks
    type "F" ATF if the hoses are seaping(often stops the leak)
    and the cheapest ATF you can find if it is leaking bad
     
  3. 79Beast

    79Beast 1/2 ton status

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    ATF isn't that much cheaper than PSF. I ONLY use PSF. I experimented and I'll tell you right away that ATF boils over faster and doesn't perform as well. It also foams up worse. There's a reason PSF was invented.
     
  4. Citizen Rider

    Citizen Rider 1/2 ton status

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    I currently have ATF in mine cause the pump went dry offroad and ATF is all i had with me. But Next week im putting in a new box and other stuff ill use PSF.
     
  5. surpip

    surpip 1 ton status

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    i have been told that the seals in the box's and pumps do not hold up well to ATF
    that being said i use ATF and it leaks like crazy
    so after i get a new pump, and rebuild my box i will us PS fluid
     
  6. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Funny how threads like this alternate between views... Last time this came up, the consensus was overwhelmingly, just use ATF.

    Thats my opinion.. I don't by the seal thing for a second... The leak would have showed or developed anyway.. ATF has been used regularly from the factory forever.. Matter of fact, I can't say I've seen PSF in any vehicle I've owned or worked on...
     
  7. big dan

    big dan 1/2 ton status Premium Member

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    Ive heard that the atf causes the seals to leak but I dont know for sure. mine has been leakings since I got it but Ive always used atf.
     
  8. walla2k5

    walla2k5 1/2 ton status

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    I've used ATF for years , no problems...
     
  9. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Amsoil reccommends ATF for modern power steering systems. I don't buy it making seals leak either. Look at it's other applications, transmissions have tons of seals in them along with transfer cases.
     
  10. fabjunkie

    fabjunkie 1/2 ton status

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    On my old Ramcharger, the box leaked something feirce, and I was filling it up a couple times a day. Well the day came that I didn't have any more PSF, so I threw in what I had, yep some good 'ole 20/50. :haha: After a little oil leak stop and couple small top offs, it never leaked again, never puked, or had any problems. I drove it like that for a couple more years. :D
     
  11. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    Certain seals and hoses are made for different fluids. That being said I only use PSF in my steering system.
     
  12. ssped

    ssped 1/2 ton status GMOTM Winner

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    They really are almost identical. Both have anti foaming agents and are standard hydrolic flluids. at the dealers I have worked at (dodge, Cheep, Chrysler Mitsu...) it is pretty relative. the only system We have to use certain fluids in is ACE systems and some of the new Rack n pinions are running synthetic. I would imagine the seals... in the trans are way more sensitive than a PS system and the lines for PS and Trans cooler are the same Rubber pressure lines.

    That said I have been running ATF for 20 years without any problems.

    At dodge in the caravans we used to add a small bottle of anti foaming agent if they made noise. at Rover we change the Synthetic fluid for the racks to quiet them down.
     
  13. berserker

    berserker 1/2 ton status

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    yes atf should not change a thing back in the day alot of cars came with atf in ps systems. i use it cause its cheaper and instead of carrying ps and atf i just carry atf. two for one.
     
  14. onetonbb74

    onetonbb74 1/2 ton status

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    Since My Box, Pump, Lines, And Reservoir Are Brand New, I Used Psf. Although I Used To Use Atf Because I Didnt Care On The Last System (push Pull) And Everything Was Hammered. My Elcamino Didnt Mind Atf Either.
     
  15. bdozeraz

    bdozeraz 1/2 ton status

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    The place that rebuilt my box and pump said use either. I use atf so I have to carry less different types of fluid with me. Before I added the ram assist I used atf plus a half bottle of stp oil treatment. It gave the pump a little boost in pressure.

    Brent
     
  16. Mudgod

    Mudgod Registered Member

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    Neither! I use the same hydraulic fluid in my PS as I do in my tractor. Cut way down on my foaming problem related to my fullhydro system. so I didn't vote.
     
  17. chevy wrangler

    chevy wrangler 1/2 ton status

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    what if i add gear oil???
     
  18. DieselDan

    DieselDan 1/2 ton status

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    All CUCVs and HMMWVs use ATF, from the factory. The Army doesn't stock power steering fluid
    .
     
  19. txfiremank5

    txfiremank5 1/2 ton status

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    For me it will be a pretty simple choice. The place I got my ram from has this clearly stated:

    So, it looks like I'll run PSF only. Besides, I didn't spend thousands of dollars in upgrade parts, to save a couple of dollars on PSF. This is the wrong sport/hobby to be in, if a bottle of PSF is "too much".
     
  20. MetalMelter

    MetalMelter 1/2 ton status

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    ATF works great for me, well maybe cuz my brother has a bad auto tranny leak and always has a case of it.:D I'll pay you back bro.
     
    Last edited: Jan 2, 2010

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