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

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Omar RVA, Mar 19, 2017.

  1. Jan 20, 2023 at 2:37 PM
    #741
    VTi EG6

    VTi EG6 Well-Known Member

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    For Auto rear diffs is everyone staying with toyota recommended fluid or redline, amsoil, other?
     
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  2. Jan 20, 2023 at 2:39 PM
    #742
    tonered

    tonered bartheloni

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    There's no reason to do anything interesting with the diff lube. I used M1 75W-90. Be sure to do the front diff at the same time as it has less capacity and the spiders are always spinning in there even though the ring and pinion are not. See this post for pics:

     
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  3. Jan 20, 2023 at 3:04 PM
    #743
    VTi EG6

    VTi EG6 Well-Known Member

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    CygnusX191 and tonered[QUOTED] like this.
  4. Jan 20, 2023 at 3:52 PM
    #744
    tonered

    tonered bartheloni

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    You're welcome!
     
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  5. Jan 20, 2023 at 3:54 PM
    #745
    CygnusX191

    CygnusX191 Gangster of Boats

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    Do the t case while you're at it.
     
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  6. Jan 20, 2023 at 4:26 PM
    #746
    TeecoTaco

    TeecoTaco Liberty Biberty

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    Modified the level of gas in the tank
    His money is burning a hole in your pocket...ain't it...lol
     
  7. Jan 20, 2023 at 5:31 PM
    #747
    tonered

    tonered bartheloni

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    Not worth doing short of 90k.
     
  8. Jan 20, 2023 at 5:53 PM
    #748
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    Tony is the fun police! Someone arrest the man!
     
  9. Jan 20, 2023 at 6:21 PM
    #749
    tonered

    tonered bartheloni

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    Hahaha! You know me!
     
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  10. Jan 20, 2023 at 6:24 PM
    #750
    CygnusX191

    CygnusX191 Gangster of Boats

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    Guess it depends on the owner and how they use it. Just did a full four-wheel drive service on a 4Runner 2 days ago that definitely didn't need it, but the owner insisted because they're out on their property several times a month. Did a Highlander that probably only ever used it's all-wheel drive whatever it snowed and the fluid coming out of the front diff and the t case definitely needed to be replaced... At 60,000 mi.

    There are a myriad of possible causes but I suggested it because the T case uses the same oil as the differentials and since you're already under there... What's another quart and a half? Lol
     
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  11. Jan 20, 2023 at 6:27 PM
    #751
    tonered

    tonered bartheloni

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    I use the 2LM almost daily and get in a decent amount of wheeling. Both times that I swapped it, the fluid looked virgin.

    Per the manual, the 3rd Gen T case fluid is different. I would not give advice against that.
     
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  12. Jan 20, 2023 at 6:30 PM
    #752
    CygnusX191

    CygnusX191 Gangster of Boats

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    I'm just giving the Toyota rm advice from Toyota Information Systems, where the dealerships have access to all kinds of technical info.

    Perhaps it's just the middle of the pack (as Toyota are wont to do) information.

    If I could afford it, I'd run exclusively amsoil, as my one time changing all fluids with their stuff went swimmingly.
     
    duece5811 likes this.
  13. Jan 20, 2023 at 6:34 PM
    #753
    tonered

    tonered bartheloni

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    TiS says 75w-85 GL5 when the OM says 75w LF? Again, it's one thing to do what works offline. Another to recommend to someone else.
     
  14. Jan 20, 2023 at 8:47 PM
    #754
    CygnusX191

    CygnusX191 Gangster of Boats

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    Yup. GL5 covers additive requirements for the T case.

    75W LF, Toyota has a "branded" oil specific to this, costs a bit. Says Toyota on the package.

    Otherwise.... Your guess is as good as mine. :notsure: (Toyota also probably can't be bothered to rewrite manuals, since next to nobody reads them anyways lol)
     
  15. Jan 20, 2023 at 9:04 PM
    #755
    tonered

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    That's the thing. The T case fluid is a change from the 2nd Gen.

    I got hosed on something like that in the past. OM had an old spec listed (ATF for PS fluid / had to buy some). Tossed that in. The spec changed to Pentosin, which I already had on the shelf. Not long after, the rack cracked. The error was in the manual for the whole generation.

    I was doubting myself about the failure until someone else had the same issue.

    So, I kinda take changes to heart.


    The LF T case fluid cost isn't too bad if ran for 90k. That said Ravenol worked well for 40k.
     
  16. Jan 20, 2023 at 9:09 PM
    #756
    erok81

    erok81 Well-Known Member

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    This PS thing is on your current truck? I just swapped out the fluid with ATF.
     
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  17. Jan 20, 2023 at 9:12 PM
    #757
    tonered

    tonered bartheloni

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    No. It was a car ages ago. Sort of a painful lesson.

    Yeah. The Taco is generally easy.
     
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  18. Jan 20, 2023 at 9:21 PM
    #758
    erok81

    erok81 Well-Known Member

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    Yeah I’d say. Trying to follow OEM and it still goes wrong.

    Had me worried on the Tacoma for a minute. :rofl:
     
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  19. Jan 20, 2023 at 9:35 PM
    #759
    tonered

    tonered bartheloni

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    I hear you there.

    Pentosin kinda sucks because you have to flush every so often. And, it is pretty pricey for PS fluid.
     
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  20. Jan 21, 2023 at 7:12 AM
    #760
    CygnusX191

    CygnusX191 Gangster of Boats

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    Whew. I mean that sucks, but you had me worried, since we still use ATF for ps top offs and such lol
     

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