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3rd gen manual transmission drain and fill

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Mallcrawler20, May 12, 2025.

  1. May 12, 2025 at 9:10 AM
    #1
    Mallcrawler20

    Mallcrawler20 [OP] Well-Known Member

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    Question just to confirm on the manual transmission u don’t need to do the temperature check for fluid level ? Just drain and fill ? Did some research here and all I see is just draining and filling . On the auto requires some temperature check for levels.
     
  2. May 12, 2025 at 9:36 AM
    #2
    shaggy135

    shaggy135 Well-Known Member

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    Nope, just drain and refill. Make sure to pull the fill plug first too.
     
  3. May 12, 2025 at 9:56 AM
    #3
    STEELeR43

    STEELeR43 Well-Known Member

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    What previous post wrote, but make sure it is GL-4 grade gear oil for manual transmission. GL-5 will melt brass syncros.
     
    shakerhood, MOC221_, OZ TRD and 2 others like this.
  4. May 12, 2025 at 10:13 AM
    #4
    Clearwater Bill

    Clearwater Bill Never answer an anonymous letter

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  5. May 12, 2025 at 11:30 AM
    #5
    yotadust

    yotadust Well-Known Member

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    how many miles on ole girl??
     
  6. May 12, 2025 at 12:21 PM
    #6
    InThePlains

    InThePlains Well-Known Member

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    24mm sockets and crush washers.
     
  7. May 12, 2025 at 12:22 PM
    #7
    Clearwater Bill

    Clearwater Bill Never answer an anonymous letter

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    6 point, not 12.
     
  8. May 12, 2025 at 1:18 PM
    #8
    3JOH22A

    3JOH22A トヨタ純正男娼

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    Correct, MT doesn't heat up the gear oil to the point of affecting volume from thermal expansion. Change MT oil the same way as differential oil - when cold.
     
    shakerhood likes this.
  9. May 12, 2025 at 2:44 PM
    #9
    Mallcrawler20

    Mallcrawler20 [OP] Well-Known Member

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    63k never done a flush on it so figure it’s about time .
     
    yotadust[QUOTED] likes this.
  10. May 12, 2025 at 10:17 PM
    #10
    HelloFelix

    HelloFelix Well-Known Member

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    #10
    Toy_Runner, MOC221_ and shakerhood like this.
  11. May 13, 2025 at 3:32 AM
    #11
    RustyGreen

    RustyGreen A breaker point guy in a Bluetooth world

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  12. May 13, 2025 at 10:54 AM
    #12
    Mallcrawler20

    Mallcrawler20 [OP] Well-Known Member

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  13. May 13, 2025 at 12:30 PM
    #13
    Clearwater Bill

    Clearwater Bill Never answer an anonymous letter

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    All I can say is in my street class SCCA 96 Miata (which all early miatas had truck transmissions) I went from factory fill to Royal Purple to Redline to Ford. And stopped there. I raced technical courses with lots of shifting, up and down. Smooth mattered. Snick snick like soft butta.

    You'll also note my post has a few likes, so someone else had found the magic too.
     
  14. May 13, 2025 at 1:34 PM
    #14
    DTaco18

    DTaco18 Well-Known Member

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    When I had the MT I thought it smoothed it out quite a bit vs stock fluid. I bought on RockAuto and is wasn't any more expensive than other GL-4 oils...
     
  15. May 13, 2025 at 5:57 PM
    #15
    RustyGreen

    RustyGreen A breaker point guy in a Bluetooth world

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    Far superior to the factory fill.

    My transmission felt clunky, crunchy, was often difficult to get into first gear and I was conscious of the synchromesh "working", it wouldn't grind but you could feel it in the stick.

    I changed to the Motorcraft fluid at 30K, the first trip around the block was an amazing change, now at 80K it still shifts nice and slick.


    Motorcraft data sheet:

    https://fcsdchemicalsandlubricants.com/products/transmission-fluid/productdetails?id=1

    Rock Auto had the best price.

    https://www.rockauto.com/en/parts/motorcraft,XTM5QS,transmission+fluid,13630
     
  16. May 13, 2025 at 6:29 PM
    #16
    RunnerBlue4

    RunnerBlue4 Active Member

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    My 2017 TRD Sport manual with 48,000 miles shift pretty smooth. But, I'm tempted to switch out the transmission fluid with Motorcraft just based on the age.
     
    DTaco18 likes this.
  17. May 14, 2025 at 5:18 AM
    #17
    Alakablamo

    Alakablamo Member

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    I've got the Amsoil 75w90 GL-4 in both Tacomas now, but might have to try the Motorcraft next time. I just change it every 30k along with the differentials and transfer case.

    Transmission: AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube (GL-4)
    Differentials: AMSOIL Severe Gear 75w-140
    Transfer Case: Redline MT-LV (GL-4)
     
  18. May 15, 2025 at 2:20 AM
    #18
    DavidSmothers

    DavidSmothers Well-Known Member

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    Which Redline were you running?
     
  19. May 15, 2025 at 3:40 AM
    #19
    Clearwater Bill

    Clearwater Bill Never answer an anonymous letter

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    MT90.

    It was good. Ford was better. IMHO of course. It completely solved any 2-1 downshift resistance
     

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