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Manual Transmission Oil

Discussion in '1st Gen. Tacomas (1995-2004)' started by TurbulentLamp, Oct 29, 2019.

  1. Oct 29, 2019 at 9:16 AM
    #1
    TurbulentLamp

    TurbulentLamp [OP] Well-Known Member

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    Hello,
    I'm replacing the clutch on my 99' during Thanksgiving, and I was planning on draining the transmission oil and putting in new transmission oil. I plan on using Red Line MT90. I checked the service manual and it states that the 5 speed R150 transmission only takes 2.7 quarts. Is this true? So, if I drain the trans oil, about 2.7 quarts should come out, and I should put 2.7 quarts in? I'm only asking because the amount seems low to me. I figured that it would take more trans oil like around 5 or 6 quarts. Any advice is appreciated. Thank you!
     
  2. Oct 29, 2019 at 9:20 AM
    #2
    cruiserguy

    cruiserguy Well-Known Member

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    The amount you state is correct. The manual transmissions don't use all that much oil. Make sure you can open the fill plug before you open the drain plug to drain the fluid
     
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  3. Oct 29, 2019 at 9:22 AM
    #3
    eon_blue

    eon_blue 8" third member

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    Auto transmissions take several quarts of fluid, manual transmissions only take a few quarts of gear oil per change. Fill it up until the oil starts to run out of the fill hole, that's when you know it's full
     
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  4. Oct 29, 2019 at 9:24 AM
    #4
    TurbulentLamp

    TurbulentLamp [OP] Well-Known Member

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    Wow I'm impressed that's such a low amount! Thank you for your response! I'm no longer worried about having to purchase a ton of trans fluid.
     
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  5. Oct 29, 2019 at 9:25 AM
    #5
    TurbulentLamp

    TurbulentLamp [OP] Well-Known Member

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    Thank you! I'll be sure to do that! I'm going to fill up the transmission through the shifter hole because it seems easier than using a pump.
     
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  6. Oct 29, 2019 at 9:27 AM
    #6
    eon_blue

    eon_blue 8" third member

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    Pump is super easy...I just picked up a cheap $5 one from the parts store. Just have to remove the fill plug and pump the oil in. Although you can do it via the shifter hole too...I think you have to remove a bunch of stuff there though to get to it. I've never done it that way myself.
     
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  7. Oct 29, 2019 at 9:30 AM
    #7
    cruiserguy

    cruiserguy Well-Known Member

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    This isn't a bad idea. Knowing how I am, I'd prolly check the fill hole just to make sure the fluid is up that point, as that is the measure point for knowing it's full.(though it should be due to dumping 2.7 qts through the shifter.
    Funny story, I rebuilt a Ford Festiva engine and I drained and filled the manual transmission as well. Known what it took? No exaggeration, it took thin ass ATF and was only like 1.7 qts...... :eek: I was like wut???
     
  8. Oct 29, 2019 at 9:36 AM
    #8
    Wulf

    Wulf https://youtu.be/d-u0dqCI23M

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    I also fill through the shifter. Way easier than fumbling with those pumps which just piss me off.

    Have someone to verify when it starts to come out of the fill hole.
     
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  9. Oct 29, 2019 at 9:41 AM
    #9
    GQ7227

    GQ7227 mw survivor

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    how much is that per quart, for the good stuff
     
  10. Oct 29, 2019 at 9:42 AM
    #10
    Wulf

    Wulf https://youtu.be/d-u0dqCI23M

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  11. Oct 29, 2019 at 9:43 AM
    #11
    eon_blue

    eon_blue 8" third member

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    like how much does the gear oil cost? I use MT90...like $60 per gallon. Get close to 2 uses per gallon if I remember right.
     
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  12. Oct 29, 2019 at 9:52 AM
    #12
    km87

    km87 Active Member

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    I use MT-90 and I noticed a difference. This task is so damn easy, I try not to laugh when people blow it out of proportion.
     
  13. Oct 29, 2019 at 10:43 AM
    #13
    TurbulentLamp

    TurbulentLamp [OP] Well-Known Member

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    Wow that's crazy! That's such a small amount. I would be concerned thinking whether or not I drained everything out or trying to figure out if I'm pouring it correctly. I just can't get over the fact that it takes that little amount of gear oil. I've heard of trucks that take 10 quarts for an automatic transmission.
     
  14. Oct 29, 2019 at 10:47 AM
    #14
    eon_blue

    eon_blue 8" third member

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    yeah autos are a different beast. Require much more fluid than manuals transmissions do gear oil.
     
  15. Oct 29, 2019 at 10:48 AM
    #15
    Pablo8

    Pablo8 Lounge Lizard Taco

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    MT's are not very hard on fluid relatively speaking. Not a pump system. Doesn't take much at all.

    Differentials OTOH REALLY don't hold much, have extreme heat, extreme pressure.
     
  16. Oct 29, 2019 at 11:17 AM
    #16
    Wulf

    Wulf https://youtu.be/d-u0dqCI23M

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    The auto in my F350 takes 19(!!!!) Quarts
     
  17. Oct 29, 2019 at 11:18 AM
    #17
    eon_blue

    eon_blue 8" third member

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    goddamn lol
     
  18. Oct 29, 2019 at 12:01 PM
    #18
    TurbulentLamp

    TurbulentLamp [OP] Well-Known Member

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    Yikes! That's definitely expensive if you flush out all of the transmission fluid.
     
  19. Oct 30, 2019 at 8:17 AM
    #19
    se7enine

    se7enine MCMLXXIX

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    But being a Ford it won't last long enough to need a fluid change :D
     
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  20. Nov 6, 2019 at 2:05 PM
    #20
    Icancounttotensometimes

    Icancounttotensometimes Active Member

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    Last night while I was at work on nights. I specifically bought a 32 ounce bottle of ARCHOIL 9100 for the diffs, transfer case, trans etc. I filled the rear diff, which was low as I have read a lot on TW. I pulled the fill on the transfer case and it was full, so I got one good squirt about 50ml in the t-case. The transmission was low I put about 150ml in it before it was coming out of the fill. Front diff I didn’t have the hex on me so next time I’m on nights.

    long story, however my drive home this morning I noticed immediately how smooth and buttery the shifts were. I’m used to the cold slightly stiff shifting for a few miles. So all I can say is what a difference in shifts. I actually have to get used to it because I’m easy on all my man trans. So with that being said I have used 9100 for a few years in my motor oil including my 7.3 power stroke. I’m impressed.
     
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