t 5 transmission fluid

Discussion in 'General Maverick/Comet' started by mustangturbo50, Mar 29, 2008.

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  1. mustangturbo50

    mustangturbo50 Member

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    ok im opening this thread up no to fight but to talk about what fluid you would use in a 1985 t5 transmmission. i will admit defeat and say im wrong if you are in fact supposed to use gear lube in this transmission .. i always thought you used atf.. 85 would be none world class right?
     
    mustangturbo50, Mar 29, 2008
    #1
  2. blugene

    blugene Senior member Supporting Member

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    As much as I wish I could answer this question I cant. I have a c4 that was pieced together by Eagle Transmission for what reason i'm not sure. I gave them a Comet with a factory drivetrain and got back a frankenstein so I have found out. I say this cause I don't know what type fluid I should use... hope you get closer. :)
     
    blugene, Mar 29, 2008
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  3. Shinysideup

    Shinysideup Chillin the most

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    dextron/mercron 3. read an owners manual.
     
    Shinysideup, Mar 29, 2008
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  4. Earl Branham

    Earl Branham Certified Old Fart

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    I use B&M Trick Shift ATF in my '93 T5. Not sure if it is the same as the '85, but the Trick Shift is the same as Mercon lll atf.
     
    Earl Branham, Mar 29, 2008
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  5. blugene

    blugene Senior member Supporting Member

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    He did say he thinks it is supposed to be atf...Just curious, which manual? :huh:
     
    blugene, Mar 29, 2008
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  6. Corbin Johnson

    Corbin Johnson Member

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    From http://www.allfordmustangs.com/Detailed/349.shtml:

    So, I guess it depends on which one you have. I don't know the validity of the year cutoffs between the NWC and the WC, but if yours is a world class, it calls for ATF, non world class needs gear oil.
     
    Last edited: Mar 30, 2008
    Corbin Johnson, Mar 30, 2008
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  7. PaulS

    PaulS Member extrordiare

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    In the heavy equipment field ATF and 10w oil has been used in BW truck three and four speed transmissions. ATF has been used without harm on automotive transmissions for decades. You can easily use ATF in any manual transmission a long as it is not used under heavy SHOCK loads.
     
    PaulS, Mar 30, 2008
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  8. Dave B

    Dave B I like Mavericks!

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    I'm not smart enough to have a manual transmission, all that foot pushing and arm moving, makes me tired just thinking of it, and how are you suppose to eat a big mac while driving??:rolleyes:
     
    Last edited: Mar 30, 2008
    Dave B, Mar 30, 2008
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  9. mustangturbo50

    mustangturbo50 Member

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    wc nwc

    well i thought they didnt use the world class until 86 so if i had an 85 it would be non world class. it came out of a 1985 mustang gt..
     
    mustangturbo50, Mar 30, 2008
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  10. PINKY

    PINKY .....John Ford.....

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    I have no dog in the fight :D But knowing what and who I know. I would take Lonnie's advice over anyones on this board on this subject. (y)
    You/he might have ruffled each others feathers.....but he has the knowledge and experience I would trust on these transmissions.

    *just my $.02 :)
     
    PINKY, Mar 30, 2008
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  11. mustangturbo50

    mustangturbo50 Member

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    yeah....

    yeah we did lol. im over it .. if im wrong im wrong. i was going off every t5 i have ever had but than again i can honestly say i have never had a non world class one. so i guess i am wrong. so an 85 gt transmission would be gear lube..?
     
    mustangturbo50, Mar 30, 2008
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  12. Derek 5oComet

    Derek 5oComet Tire burner

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    I have 3 T5"s and always ran ATF in them.One of them is toast and i blamed it on high mileage but maybee i was putting in the wrong fluid I don't know.So i pulled the drain plug on a 85 T5 i have on the floor that is a real low milage trans and it has lightweight gear lube in,most likely original.So i guess it's possible the non w/c do take gearlube.
     
    Derek 5oComet, Mar 30, 2008
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  13. Blown 5.0

    Blown 5.0 Hooked on BOOST MEMBER

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    Put AMSOIL 80-90 weight and cover both fields, This is what all the Mustang T5S around here run.
     
    Blown 5.0, Mar 31, 2008
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  14. mustangturbo50

    mustangturbo50 Member

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    ok

    so an 85 t5 would be gear lube than? just 80w 90?
     
    mustangturbo50, Mar 31, 2008
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  15. Bryant

    Bryant forgot more than learned

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    he says non world class so i say gear oil. from what i under stand the bigest different between world class and non is world class uses needle bearing and non uses ball bearings. so atf is needed to get into the needle bearings. gear oil protects gear sets alot beter than atf can.
     
    Bryant, Mar 31, 2008
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