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6 sp fluid change

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Yoda66, Feb 18, 2019.

  1. Feb 18, 2019 at 7:39 AM
    #1
    Yoda66

    Yoda66 [OP] Active Member

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    i need to change my 6 speed fluid. Manual says to use gl-4-gl-5 75w90. The rear axle w/locker
    2wd TRD calls for 90w. Is this the same as 75w90?
     
  2. Feb 18, 2019 at 7:41 AM
    #2
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    No.
     
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  3. Feb 18, 2019 at 7:50 AM
    #3
    Yoda66

    Yoda66 [OP] Active Member

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    Ok thanks. On the 75w90 for the trans. Does brand matter I usually use name brand fluids in my vehicles. I’m in Alabama. Where summer last 10 months out of the year
     
  4. Feb 18, 2019 at 7:59 AM
    #4
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    I prefer easy to obtain product at reasonable cost.

    The choice between syn and dino (that you didn't ask about) would be based on 1) how you use/abuse the vehicle and 2) are you willing to extend the OCIs, which is a prime reason to use syn.

    Since it calls for a GL 4 / GL 5 in the trans, I'd go straight GL 4, which is not easy to find. I like an elixer Ford sells Ford XT-M5-QS. Your parts guy may not be familiar, but it's an SVO product. It's not cheap, but you can double your OCIs and enjoy smoother shifting while you do it. Well proven in the auto-x world in many marquees.

    I had no issues with Mobil 1 in the diff. of the same auto-x vehicle.

    If you don't care for the Ford idea in the trans, Mobil 1 in the right spec for both the trans and diff is also fine.
     
  5. Feb 18, 2019 at 8:03 AM
    #5
    Yoda66

    Yoda66 [OP] Active Member

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    Great. I drive 8 hwy miles to work and around town on weekends. No off road. Will go with the Mobil 1
     
  6. Feb 22, 2019 at 8:23 PM
    #6
    Yoda66

    Yoda66 [OP] Active Member

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    So I changed rear diff today. I used Mobil 1 75w90ls. I did not realize is was for Limited slip which I do not have. Is that ok? Also I bought same oil for my 6 speed manual Mobil 1 75w90 ls. Do I need to find 75w90 without the ls additive in it for the transmission?
     
  7. Feb 22, 2019 at 8:38 PM
    #7
    b_r_o

    b_r_o I always have coffee when I watch radar

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    Using a fluid that is specified for an LSD will not hurt a non LSD
     
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  8. Feb 22, 2019 at 8:39 PM
    #8
    Yoda66

    Yoda66 [OP] Active Member

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    So will it work in my 6 speed trans.
     
  9. Feb 22, 2019 at 8:42 PM
    #9
    b_r_o

    b_r_o I always have coffee when I watch radar

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    Sorry i didnt read correctly.. it should be fine, its the correct weight. Whatever additive is in there for the LSD wont hurt the manual trans. Its just bearings and brass in there
     
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  10. Feb 27, 2019 at 7:28 PM
    #10
    Yoda66

    Yoda66 [OP] Active Member

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    Decided not to use Mobile 1 75w90 in the 6 speed. 2 quarts of redline mt90 arrived today from Amazon.
     
  11. Feb 28, 2019 at 5:32 PM
    #11
    Taco'09

    Taco'09 Well-Known Member

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    FWIW. Toy dropped the dual Gl-4 or Gl-5 for the transmissions on later models and specifies a Gl-4 only.
     
  12. Jun 13, 2019 at 5:17 PM
    #12
    Hoodtaco

    Hoodtaco Well-Known Member

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    Hey Clearwater, do you put the ford trans fluid in the diff as well? what would you run in the Diffs if now?
     
  13. Jun 13, 2019 at 7:00 PM
    #13
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    No. The diff uses a GL5 IIRC

    In my autox ride I just used Mobil 1 of the correct GL and weight.
     

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