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best transmission fluid for '04 cobra?

Discussion in 'Driveline' started by pgrimlock, Dec 23, 2007.

  1. Sanchez209

    Sanchez209 New Member Established Member

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    Stockton
    Yea but ATF is for auto transmissions isn't it? Okay my cobra has 115k got it with 108 but everything works fine I just want to do the transmission oil change....which one do you recommend? And I do race the shit out of it if that helps
     
  2. 03cobra#694

    03cobra#694 Want to play a game? Staff Member Super Moderator

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    Yes, ATF, lol. I use the Royal Purple Synchromax
     
  3. Sanchez209

    Sanchez209 New Member Established Member

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    Royal purple

    Okay man ima try it out should I put an addictive to it?
     
  4. bubblehead93

    bubblehead93 Member Established Member

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    many companies have synchromax equivalents, before coming to Guam used AMSOIL's version, hard to get out here, switched back to Penzoil... I like the AMSOIL better, maybe psychosomatic though, car shifts good, 12 years, one tranny rebuild, when I was inside the only wear was on the blocker rings, bearings were all good, no sign of excessive heat... I autocross and drag race...
     
  5. SWEET03COBRA

    SWEET03COBRA damn this wheel hop! Established Member

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    Great Falls, Mt
    I have used pensoil for years, no issues here. Yes it is ATF
     
  6. JuStAkId

    JuStAkId Just roll with it Established Member

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    Pennzoil synchromesh. I noticed a smoother shift when the trans would heat up compared to mobil 1 atf
     
  7. Sanchez209

    Sanchez209 New Member Established Member

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    Stockton
    Oil change

    Got my oil tranny changed today I put penzoil synchromesh....it merks way better shifting at high rpms...only bad thing is when I drained it it only had like 1/4 of a quart....hopefully I didn't hurt my tranny
     
  8. 03cobra#694

    03cobra#694 Want to play a game? Staff Member Super Moderator

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    You used the bottom plug to drain it right and not the upper one?
     
  9. Sanchez209

    Sanchez209 New Member Established Member

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    I took it to pep boys I think they used the bottom one that's all they told me that I had no oil in it
     
  10. Rambro

    Rambro Well-Known Member Established Member

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    The guy who rebuilt my trans strongly advised against synthetic ATF.. After I bought four quarts of Amsoil ATF :fm:
     
  11. Sanchez209

    Sanchez209 New Member Established Member

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    The Pennzoil synchromesh for manual transmission is working great so far for me
     
  12. 03SVT_SWE

    03SVT_SWE New Member Established Member

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    Nov 24, 2014
    Location:
    Sweden
    Just swithed to Mercon 5 from Motorcraft, I can not recommend it!
    It immediately started to rattle, even at idle. As soon as I depress the clutch the sound is gone.... Anyone else having the same issue?

    I guess I will switch to RedLine D4 as soon as the snow is gone!
     
  13. svtaddict

    svtaddict Got Traction? Established Member

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    moreno valley, Ca
    amsoil atf
     
  14. Sanchez209

    Sanchez209 New Member Established Member

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    Feb 23, 2014
    Location:
    Stockton
    Okay I'm back at pep boys that penzoil synchromesh sucked after all...I noticed that at high rpms above 4k it will get super hard to shift I even grinded my gears cuz it was stf hard! Pep boys recommended me the motor craft dextron 5 see how it goes
     
  15. Sanchez209

    Sanchez209 New Member Established Member

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    I meant mecron 5 not dextron
     

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