Power Steering Fluid Compatibility
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This is a discussion on Power Steering Fluid Compatibility within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I'm thinking about changing the power steering fluid on my 2009 2.5i now that I'm almost at 30k miles. Question: ...

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    Power Steering Fluid Compatibility

    I'm thinking about changing the power steering fluid on my 2009 2.5i now that I'm almost at 30k miles.

    Question:

    I have heard that some cars can take ATF instead of PSF but my manual only states PSF it says nothing about ATF. Can I use ATF?

    I went to Advance Auto Parts today and saw Valvoline MaxLife in a red bottle PSF for $4 for a quart. Is this stuff any good?

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    Registered User mudferret's Avatar
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    If it calls for PSF use PSF. Each fluid will have different additives that can/will reak havoc if used inappropriately.

    Most, if not all Toyotas call for ATF, I'm sure a ton of people ended up with leaking racks when they put PSF in.
    ...Rob.
    MMVI WRX - VF43 Airboy Tuned @ 3500'

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    Registered User JUSTINSNUTSWINGER's Avatar
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    Get the ATF/PSF from the dealer. $9 quart
    N-swinger

    2000 Escort

    Maintenance schedule and poke in the eyes:
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    Toboggan T0rque's Avatar
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    go to subaru parts counter.

    Ask for Power Steering Fluid for said model

    Buy fluid.

    At all costs avoid napa, oreillys, schucks, autozone.


    Lead Wrench @ WTF Tuning, LLC

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    Moderator Donkey's Avatar
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    It uses ATF (Dextron III) for PSF.
    Resident Adviser @ WTF Tuning, LLC
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    Now i'm really confused! I just went on the amsoil.com site to look at fluids and came across a vehicle selection menu that matches the fluids meant for your vehicle. It listed ATF as the PSF. I may just go to the dealer for the fluid. The manual is confusing me.

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    Registered User Pavia's Avatar
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    How often do folks generally change the PS fluid?
    06 GTO M6 Quicksilver, SLP 455 Bobcat, LS7 Clutch w/ SS line (RPM tune:373rwhp/373rwtq)
    07 WRX TR M5 Garnet Red Pearl w/ Straight PPGs and Cusco front LSD (Agile tune:307whp/343wtq)

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    Toboggan T0rque's Avatar
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    Quote Originally Posted by Donkey View Post
    It uses ATF (Dextron III) for PSF.


    Lead Wrench @ WTF Tuning, LLC

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    Toboggan T0rque's Avatar
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    Quote Originally Posted by Pavia View Post
    How often do folks generally change the PS fluid?
    I recomend 30k intervals.


    Lead Wrench @ WTF Tuning, LLC

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    Registered User Pavia's Avatar
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    So ATF Dexron III is no longer made. I assume there are equivalents on the auto stores's shelves.

    Do you all suck the fluid out of the reservoir tank or flush it from the pipe joint in center of gear box?

    It never occurred to me to do this, because the manual only said Inspect. good stuff....
    06 GTO M6 Quicksilver, SLP 455 Bobcat, LS7 Clutch w/ SS line (RPM tune:373rwhp/373rwtq)
    07 WRX TR M5 Garnet Red Pearl w/ Straight PPGs and Cusco front LSD (Agile tune:307whp/343wtq)

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    Moderator Donkey's Avatar
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    You can use Dextron IV. NASIOC has some good DIY on changing PSF.
    Resident Adviser @ WTF Tuning, LLC
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    Registered User Pavia's Avatar
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    Quote Originally Posted by Donkey View Post
    You can use Dextron IV. NASIOC has some good DIY on changing PSF.
    Just read through it... I think I can raid the kitchen cupboard for a baster... lol.

    I found one comment interesting... Basically, the ATF fluid in an auto tranny gets dirty over time because of the dust and material coming from the action of the transmission. The ATF fluid in the powersteering, however, doesn't see this kind of use or is exposed to residue, so, in theory, it shouldn't really need replacement anytime soon.

    It got me thinking about the PCV valve too.
    06 GTO M6 Quicksilver, SLP 455 Bobcat, LS7 Clutch w/ SS line (RPM tune:373rwhp/373rwtq)
    07 WRX TR M5 Garnet Red Pearl w/ Straight PPGs and Cusco front LSD (Agile tune:307whp/343wtq)

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    I'm going to use a pump from a shower gel bottle to pump the old fluid out. I went to Advance Auto Parts again and this time the cashier looked up the fluid requirements in the computer. He directed me to Dexron III/M. Advance Auto Parts sells it under it's in store brand name for $3 per quart.

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    Registered User Pavia's Avatar
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    Quote Originally Posted by Marukai View Post
    I'm going to use a pump from a shower gel bottle to pump the old fluid out. I went to Advance Auto Parts again and this time the cashier looked up the fluid requirements in the computer. He directed me to Dexron III/M. Advance Auto Parts sells it under it's in store brand name for $3 per quart.
    That sounds like a good idea. You could do it a couple times to dilute the old fluid enough.
    06 GTO M6 Quicksilver, SLP 455 Bobcat, LS7 Clutch w/ SS line (RPM tune:373rwhp/373rwtq)
    07 WRX TR M5 Garnet Red Pearl w/ Straight PPGs and Cusco front LSD (Agile tune:307whp/343wtq)

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    Quote Originally Posted by Donkey View Post
    It uses ATF (Dextron III) for PSF.
    Ditto.

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