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Manual trans grind after replacing oil/fluid

Discussion in '2nd Gen. Tacomas (2005-2015)' started by jmettx, Apr 19, 2016.

  1. May 1, 2016 at 2:32 PM
    #21
    CoBackCountry

    CoBackCountry Well-Known Member

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    How many quarts of Redline MT90 should I need when draining and filling the transmission?
     
  2. May 1, 2016 at 4:08 PM
    #22
    Mad Man Marty

    Mad Man Marty Well-Known Member

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    almost 2 or 2 qts.
     
  3. May 1, 2016 at 4:25 PM
    #23
    CoBackCountry

    CoBackCountry Well-Known Member

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    I thought it was 3.15 quarts...I ordered a gallon of MT90 just to be safe.
     
  4. May 1, 2016 at 4:30 PM
    #24
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    Go to -> http://www.justgivemethedamnmanual.com


    Select Toyota - then yr/model you are working on. - download - go to -> Specifications. Your question will be answered when you get to that section of the Owners Manual.
     
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  5. May 1, 2016 at 5:09 PM
    #25
    CoBackCountry

    CoBackCountry Well-Known Member

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    Interesting...the manual it pulls up only shows automatic transmission, not the 6 speed
     
  6. May 1, 2016 at 5:19 PM
    #26
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    Every Owners manual I've every accessed thru that site had both manual/automatic info
     
  7. May 1, 2016 at 5:24 PM
    #27
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    2015 Tacoma owners manual

    upload_2016-5-1_19-24-2.jpg
     
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  8. May 1, 2016 at 5:25 PM
    #28
    CoBackCountry

    CoBackCountry Well-Known Member

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    Thanks, must have overlooked it
     
  9. Oct 5, 2016 at 2:04 PM
    #29
    Spansfelder

    Spansfelder Well-Known Member

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    I need to bring this thread back up, thanks to @Clearwater Bill

    I had the grind after buying the truck and were mentally already preparing to rebuild the transmission.

    Tried the Redline oil first which didn't make a difference...

    Than recently tried the Ford oil and that made a night and day difference.

    I highly recommend it to anyone with a manual transmission.
     
    Last edited: Oct 5, 2016
    Clearwater Bill likes this.
  10. Oct 5, 2016 at 2:57 PM
    #30
    matadorCE

    matadorCE Well-Known Member

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    From my experience in other cars, there is no magical fluid if the syncros are worn--it's merely a bandaid. Mine started feeling notchy and I can't figure out yet if it's the syncros or the clutch. I put in MT90 and it made a small difference in the notchiness but it seems like it doesn't want to come out of third gear about every 1 of 3 shifts.
     
  11. Oct 5, 2016 at 2:59 PM
    #31
    Spansfelder

    Spansfelder Well-Known Member

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    Agreed, it is not a magical fix. But it made a huge difference. Still need to shift slow into third, but it is a lot better than before.
     
  12. Oct 5, 2016 at 3:04 PM
    #32
    Clearwater Bill

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

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    Glad it worked out well for you!

    For the last several years with my little race prepped street car it's the only thing I'd use. Created a nice smooth shifting instead of having to wrestle with some of the gates in the middle of a run.

    I had no internal damage, just needed a better product, not easy to find in a pure GL4.

    No, it's not magical if there is existing damage. But as you've found, if there is minor wear/binding, it can make the difference between needing an immediate overhaul vs restoring driveability for a good while.

    I've even seen some vehicles continue to improve for a few hundred miles. I suppose internal clean up from neglect and a fresh coating of a good lube were the contributing factors in those cases.

    And if you are already in good shape, and it's just 'service time', why not use the good stuff?
     
    Last edited: Oct 5, 2016
  13. Oct 5, 2016 at 3:15 PM
    #33
    randomguy

    randomguy Well-Known Member

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    I'll have to give the Ford stuff a try on the next oil change. I'll add I've been happy with MT90 but I can get the Ford oil at my local dealer.
     
  14. Dec 11, 2016 at 3:52 PM
    #34
    INBONESTRYKER

    INBONESTRYKER Well-Known Member

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    Add some 'magic slippery' to you transmission, transfer case, and differentials. 'Magic slippery' = molybdenum disulfide - search on Amazon. Does wonders for sticky shifting and gear whine. Doesn't matter what gear oil you add it to.
     
  15. Dec 11, 2016 at 6:55 PM
    #35
    badger

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    Landphil is right,...Toyota is wrong,..period. Lucas oil WILL cause the sychro problem you describe. I know first hand. I have probably tried 6 or 8 different oils, and the ONLY one I use now is Redline MT-90. Using Mt-90, the shifting will recover over time unless you have done permanent damage. The whole GL4/GL5 thing only refers to non synchronized gear boxes, like differentials.
     
  16. Dec 11, 2016 at 6:59 PM
    #36
    badger

    badger Well-Known Member

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    Synchros need a certain amount of friction to function. They need specially formulated oils. Putting any kind of additive in a Tacoma transfer case could cause catastrophic failure. There is an internal pump with a very fine filter screen that can get clogged easily with added crap.
     
  17. Dec 11, 2016 at 8:31 PM
    #37
    RCOTaco

    RCOTaco Long Time Lurker

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  18. Dec 11, 2016 at 8:58 PM
    #38
    Shark18

    Shark18 Well-Known Member

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    What Mad Marty Said drain it MT 90 red line....
     
  19. Dec 12, 2016 at 6:33 AM
    #39
    badger

    badger Well-Known Member

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    I've tried it,...no it doesn't work so well in the tranny. There is only one oil for for these transmissions as far as I'm concerned, and it keeps being said...Redline MT-90
     
  20. Dec 14, 2016 at 12:14 PM
    #40
    jmgtp

    jmgtp Well-Known Member

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    I just drained out the Redline MT90 from my 5sp after about 4000 miles. It was just fine in the warmer months but in the New England cold it takes a long time to get the trans warm and I'd have a stiff/crunchy, if not cautious, 2nd gear shift.

    I'm on my third day with the Ford xt-m5-qs. Which was a complete pain to type on an autocorrecting iPhone.

    Observations:
    The cold performance is certainly better than Redline MT90 in my truck. No questioning that, again in my truck. YMMV. No, it's not perfect. But, it shifts noticeably smoother into 2nd when dead cold and that's exactly what I hoped it would do after all I read after some thorough googling.
    Added bonus: my trans seems to make less noise. Hard to measure something like that but it seems to be the case. I even had a teeny whine in 5th gear at highway speed which remarkably seems to be gone now. Call me a fan of the Ford fluid. I paid about $20/qt on Amazon a few months back and it sat on a shelf until Monday when I performed an oil change and trans fluid drain/fill.
     
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