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Changed T-Case with Castrol Mercon V, bad?

Discussion in 'Stock 2002 - 2005 Explorers' started by dwcopple, July 23, 2011.

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    1. dwcopple

      dwcopple Member

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      Will Mercon V hurt anything? It has drove fine since the change...now I read in the manual that it should've been straight Mercon...should I change it again?
       
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    3. IZwack

      IZwack Moderator Emeritus

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      It'll be fine.
       
    4. Javadog123

      Javadog123 Member

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      You can always go higher in the numbers than the manual calls for. I use Mercon VI, (which is fully synthetic) in everything.
       
    5. Dora The 4x4'a

      Dora The 4x4'a Active Member

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      from what i understand just dont mix em. and youll be alright
       
    6. dwcopple

      dwcopple Member

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      Well, I let it drain for about an hour with the front end up on ramps...I don't think much mixed in there.
       
    7. snoranger

      snoranger Well-Known Member

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      You'll be fine. Dont worry about a tiny bit getting mixed.
       
    8. swetrid

      swetrid Well-Known Member

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      Mercon V replaced regular mercon in Ford world, it is definitely acceptable and will cause no issues.
       
    9. dwcopple

      dwcopple Member

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    10. not8taxi

      not8taxi Active Member

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      i was wondering the same thing...i have MERCON V transmission fluid (about 6 quarts) from about 5-6 years ago...i bought a new case to replace the fluid in my 07 town car and the new MERCON V says do not use in transfer case BUT the old fluid that i have (which is still sealed) doesnt give that kind of warning...maybe they changed it over the years??
       
    11. Oldwolf

      Oldwolf Active Member

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      I've had that same Mercon V fluid in my xfer case for a long time now and all is fine. yours will be too.
       
    12. dwcopple

      dwcopple Member

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      Thanks Wolf, glad to hear it!
       

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