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Thread: Brake Fluid change- Power Steering fluid spec

  1. #1
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    Brake Fluid change- Power Steering fluid spec

    Going thru my brakes today in preperation for Sebring The rotors and pads are fine but I am flushing my brake fluid . Boy is it nasty! I even stuck my hand vacuum, with an attachment, in the brake reservoir to suck out all the crappy fluid in the bottom. Can't get it all. It's fine, but those last few green Mils are bugging me. Has anyone here replaced the brake reservoir?

    I noticed my power steering fluid could use a dollop or two, maybe a flush. I looked up the spec and it called for Mercon ATF. No number. Can I use the Mercon V ATF? What is the collective using?

    TIA!!!
    2003 300A Black MM
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    I'm not a gynecologist....but I'll take a look at it.

  2. #2
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    juno, do NOT use Mercon V in your P/S...

    Regular Mercon has no "number" per se, but it's just about always combined with Dexron III on the container label, as in "DexronIII/Mercon" ... Dexron is the GM spec and Mercon is the Ford spec for the same fluid.
    Last edited by RF Overlord; 03-05-2006 at 09:27 AM.
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  3. #3
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    Thanks for the quick response!

    So you are saying to use a Dextron III/Mercon ATF in the PS system?


    BTW, I am taking a sunscreen application break.

    Just thought I'd throw that in there for you cold folk.
    2003 300A Black MM
    3.73's, 3500 PI, T64e at 9.5 PSI
    Belts are for washing machines.
    Theme song (s) : Back in Black & Thunderstruck!!

    Ride it like a Ford.!!

    What would you do if you weren't afraid?

    I'm not a gynecologist....but I'll take a look at it.

  4. #4
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    Quote Originally Posted by juno
    BTW, I am taking a sunscreen application break.

    Just thought I'd throw that in there for you cold folk.
    Thanks Pal. It will only be another 2 months before Ill be doing the same

    2003
    MERCURY MARAUDER 300A

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  5. #5
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    Quote Originally Posted by juno
    BTW, I am taking a sunscreen application break.

    Just thought I'd throw that in there for you cold folk.
    Not nice to tease those of us up in the frozen tundra

    What brake pads are you running at Sebring? I went through a set of "road" pads in a weekend event last year. Keep an eye on them! This year I am stepping up to some track pads. Hopefully I will have a more consistent braking experience.

    jeremy

  6. #6
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    Hey RF...

    What's the problem using Mercon V in the PS unit??

    Just curious since you adamant about it??

    Marauderjack
    No Marauder

  7. #7
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    Quote Originally Posted by juno
    So you are saying to use a Dextron III/Mercon ATF in the PS system?
    It's Dexron (not Dextron), but yes...that's correct.
    Quote Originally Posted by Marauderjack
    What's the problem using Mercon V in the PS unit??
    Mercon V is a more highly friction modified version of Mercon and may not be compatible with other components in the steering system. It may also change the steering effort. I'm sure using a few ounces for top-up won't hurt anything, but I wouldn't do a complete flush with it. If you want to change to a "better" P/S fluid, use Mobil 1 synthetic Mercon.
    Last edited by MM03MOK; 03-05-2006 at 07:00 PM.
    The Blackbird
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    The Spruce Goose
    2004 Grand Marquis LS Limited Edition
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