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What is the best auto tranny fluid?

This is a discussion on What is the best auto tranny fluid? within the Automatic Transmission forums, part of the Drivetrain category; I just got a performabuilt tranny and I need to know whats the best brand fluid I can use?...

  1. #1
    FASTER THNA SPEEDINtICKEt BANDITO's Avatar
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    What is the best auto tranny fluid?

    I just got a performabuilt tranny and I need to know whats the best brand fluid I can use?

  2. #2
    Member 98Hardtop's Avatar
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    black
    1998 Camaro Z/28

    Did you ask them on what they recommend you use?

    09 Vulcan 900 custom.
    2007 Subaru Legacy 2.5i
    1998 Z/28 Hardtop A4 | Y2K wheels | SLP Lid | Magnaflow catback |cutout | Hotchkis LCA'S/PHB | BMR TA and D/S Loop| Tuned by Frost....300rwhp/308rwtq

    97 Cobra- bolt ons | full exhaust| 4.30's| suspension | SCT tune- sold!

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    FASTER THNA SPEEDINtICKEt BANDITO's Avatar
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    No but I think dex3 might be better than the royal purple stuff

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    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
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    383 Procharged & N20 Vert

    I use regular tranny fluid. Nothing special. A transmission cooler is more important.

  5. #5
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Dexron III

  6. #6
    Member camaroz98's Avatar
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    blue
    1998 camaro z28

    i use the new syn. dex 6 i believe it is in my 700r trans. made the shifts really smooth love it!

    Dexron-VI -- Introduced in 2006 for GM Hydra-Matic 6L80 6-speed rear-wheel-drive transmissions. Dexron VI now replaces Dexron III and II, and can be used in GM or import transmissions that formerly specified Dexron III or II.

  7. #7
    FASTER THNA SPEEDINtICKEt BANDITO's Avatar
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    Who makes it? and how much?

  8. #8
    That guy thearborbarber's Avatar
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    1991 Suburban

    All the major oil makers produce it. I can find valvoline in my area pretty easy for $5 a quarts.

  9. #9
    autoconnectionllc.com 02transamce's Avatar
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    2007 Corvette
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    i changed the tranny fluid/filter in the monte carlo ss and installed the castrol dexron VI, $6.95 a quart,but the trans shifts are definately smoother. side note:my owners manual called for dexron III with H specification, and the castrol dex VI was the only thing advance auto parts had that had a H specification. what is the deal with the H specification?

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