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3rd Gen Differential and Manual Transmission (6MT) Fluid Change

Discussion in '3rd Gen. Tacomas (2016+)' started by Omar RVA, Mar 19, 2017.

  1. Aug 26, 2020 at 9:56 AM
    #441
    tonered

    tonered tacorider

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    I am curious to see what the situation is on the 3rd Gen T cases over time, esp when folks say that dealer shops are using diff lube in them similar to 2nd Gens. All seems to be quiet so far with some high mile trucks.
     
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  2. Aug 26, 2020 at 9:59 AM
    #442
    Grossomotto

    Grossomotto Complete 3rd Member

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    Yeah I was reading about the dealers putting in 75W90 gl5 gear fluid in the tcase. I'm sure since it's just 1qt they don't stock much of the $80 toyota lv straight 75W product. Time will tell, I guess.

    Like others have said, Redline now makes a fluid for the tcase, I love all their oils.

    https://www.redlineoil.com/mt-lv-70w75w

     
    Last edited: Aug 26, 2020
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  3. Aug 26, 2020 at 10:03 AM
    #443
    tonered

    tonered tacorider

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    Since they seem to be using non-Toyota fluids by the drum for engine and diffs, it would at least make sense to grab a quantity of some compatible LF stuff. I know that I have seen the LF fluid in the Parts dept and have no clue what the dealer was using for engine oil during my ToyotaCare visits. I don't think they every checked the levels on the rest of the driveline, which is fine with me because I did. :D
     
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  4. Aug 26, 2020 at 12:17 PM
    #444
    C41n

    C41n Gandalf Da Grey

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    Did my transfer case awhile back with MT-90. Really helped the notchiness. Getting ready to do my diffs.I have some questions.

    • I am not clear, is the magnetic plug stock, or is that something people are adding?

    • I don't see any mention of the transfer case here. Is there some reason not the change the fluid in it?

    • My owners manual shows 75W-85 GL-5 (OP confirms this). OP used 75W-90 GL-5 though. What does this change exactly?
     
  5. Aug 26, 2020 at 12:22 PM
    #445
    tonered

    tonered tacorider

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    Freudian slip: :D

    I can't remember which had magnets. Sorry! From the 1st Post, it looks like the diffs do, at least.


    There are a few threads on the T case. IMHO, it is not worth doing early. Regrettably, mine came out looking virgin at 7k. I used Ravenol and have since installed the 2LM. With that, I think I will go with the Toyota LF next time as it has a bigger additive pacakge.


    I used 75W-90 because it is easy to find. IMVHO, don't feel the minor difference in hot weights is significant.

    :cheers:
     
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  6. Aug 26, 2020 at 12:25 PM
    #446
    C41n

    C41n Gandalf Da Grey

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    Thank you sir. Your posts are always quality and very helpful.

    Already owe you a beer for the ADM.
    :cheers:
     
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  7. Aug 26, 2020 at 12:27 PM
    #447
    tonered

    tonered tacorider

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    Thanks for the compliment!


    Beer's good anytime, but just hearing that you enjoy it is good enough.
     
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  8. Aug 26, 2020 at 12:32 PM
    #448
    C41n

    C41n Gandalf Da Grey

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    EVERY day! I also preach the good word to any MT owner I come across :rofl:

    Not the topic of this thread though. :threadjacked:

    @Omar RVA Thanks for the quality write up here!
     
  9. Aug 26, 2020 at 12:33 PM
    #449
    tonered

    tonered tacorider

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    Excellent! :hattip:

    :stayontopic: :rofl::rofl:
     
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  10. Aug 26, 2020 at 2:40 PM
    #450
    splitbolt

    splitbolt Well-Known Member

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    I recall Canadians reported trouble shifting in cold weather.
     
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  11. Aug 26, 2020 at 2:45 PM
    #451
    tonered

    tonered tacorider

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    I believe that was @Stocklocker ? I think he fixed it with a swap to either Redline or the Toyota fluid. I can't remember which was causing him the issue.


    I am mainly curious about wear or damage using diff lube. I trust Toyota and the OM, but it might just be a low friction concern and not a base / additive issue?
     
  12. Aug 26, 2020 at 6:16 PM
    #452
    Stocklocker

    Stocklocker Well-Known Member

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    This is correct. I changed my transfer case fluid to 75/90 synthetic, based on my dealers recommendation (they did not stock the Toyota LF fluid at the time) and the truck would not shift into or out of 4WD in cold weather with the 75/90 in there. I changed back to the Toyota LF fluid when it became available in Canada, and no further issues.
     
  13. Aug 26, 2020 at 7:38 PM
    #453
    tonered

    tonered tacorider

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    Well, fuck me. I got one right. Shitty memory and all.

    :cheers:
     
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  14. Aug 26, 2020 at 8:05 PM
    #454
    Stocklocker

    Stocklocker Well-Known Member

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    I am surprised I remembered! Gettin’ old and all.
     
  15. Aug 26, 2020 at 8:06 PM
    #455
    tonered

    tonered tacorider

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    At least you have an excuse. :D
     
  16. Oct 5, 2020 at 8:56 PM
    #456
    mangosmoothie

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  17. Oct 9, 2020 at 6:00 PM
    #457
    Rick111

    Rick111 Well-Known Member

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    For what it’s worth, I checked all of my gear oil levels soon after purchasing new. Most were low so I topped them off with OEM fluids. Front and rear differentials required a total of over 3/4 of a quart combined. Manual transmission was below 5mm mark. Transfer case overflowed when the fill plug was removed requiring no service. I replaced the crush washers and torqued the fill caps. I have the 10-year 100,000 mile warranty so I kept to the stock fluids. The hardest fluid to locate was the one for the transfer case. Hard to find and expensive. All that being said, I do like the argument made on this and other sites for using the Lucas HD 85W140 GL-5 in the rear differential for towing. I’ll be changing that fluid out soon. If you are checking fluids check all of them. Crush washers are cheap.
     
    Last edited: Oct 9, 2020
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  18. Oct 14, 2020 at 11:55 AM
    #458
    CygnusX191

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    Rush window shade, stuff from RCI, Total Chaos, Victory 4x4, Meso Customs, and a bunch of stickers. 2LoMod, OVTuned
    Approaching 50 k on mine. Definitely planning on doing the fluids myself. Probably should have done them a long time ago, been off roading since around 20 k....

    :anonymous:
     
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  19. Oct 14, 2020 at 12:01 PM
    #459
    Sociopenguin

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    That's a good enough reason to visit. Come by and use the Mity"pump"
     
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  20. Oct 14, 2020 at 12:08 PM
    #460
    CygnusX191

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    You got a flat surface? That's my next problem lol
     
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