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Tacoma differential fluid change thoughts

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Thatonetacodude, May 7, 2023.

  1. May 7, 2023 at 2:31 PM
    #1
    Thatonetacodude

    Thatonetacodude [OP] Member

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    My trucks getting close to 200k miles so I wanted to change both the front and rear different fluid. I have a 2012 taco with a rear locker and I’m not sure if it has the lsd but would I need to add an additive? Also what oil do you guys recommend? I’ve heard about some people running royal purple

    ps. what’s your mileage and how’s your taco held up so far? I’ve been thinking about saving up and replacing the old v6 with a remanufactured one from jaspers or car part planet once I get closer to 250k miles
    F79126A7-AD6C-492B-A384-AD9F46FF8A5E.jpg
     
    Lexi0216 likes this.
  2. May 7, 2023 at 2:40 PM
    #2
    TnShooter

    TnShooter The TacomaWorld Stray

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  3. May 7, 2023 at 3:05 PM
    #3
    Chapman

    Chapman Well-Known Member

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    I'm almost at 60k miles. I have 75w-90 front and the rear will soon be 75w-110 because I'm heavy with armor, 35s, etc. I'm switching from Mobil1 to Amsoil based on feedback from ppl here, but I don't think you can go wrong with either. Royal Purple however, is frowned upon by ECGS so there's that.
     
    Thatonetacodude[OP] likes this.
  4. May 7, 2023 at 3:48 PM
    #4
    nd4spdbh

    nd4spdbh Well-Known Member

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    Doesnt matter what gear oil you use, dino, synthetic, blend etc.... as long as its fresh, clean, changed at proper regular intervals and is the right spec the rear axle will outlive you.

    Needless to say get any 75w-90 gear oil you would like. 99% of them are going to have the Limited Slip additive anyways (which isnt needed in the case of the e locker but wont hurt it)

    The above applies to the tcase and front diff as well.


    As far as the motor, unless it has serious mechanical issues, keep changing oil and filter with quality 5w-30 oil n filter of your choosing and again it will outlive most. You will 100% introduce more problems with a remand motor.
     
  5. May 7, 2023 at 4:15 PM
    #5
    HWI

    HWI Active Member

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    Don't over think it. You have an open diff with a locker, so you don't need the LSD additive, but there's no harm in using gear oil that has it already in there.
    Pick your flavor of 75W-90 and roll with it, your Tacoma won't care. I personally use synthetic Mobil 1, but the brand doesn't really make a difference for 99.9999% of use cases. I like synthetic due to the longer service life, by conventional will be perfectly fine as long as you are changing it accordingly.

    As far as your last question goes...that sounds like a waste of money to me unless your engine blows up on you. I'm at a little over 185k miles and I plan on getting another 185k miles out of it.
     
  6. May 7, 2023 at 5:00 PM
    #6
    Thatonetacodude

    Thatonetacodude [OP] Member

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    Just picked me up some gear oil and will be doing it next weekend. Thank you everyone for the input!

    The main reason I wanted to go with a re remanufactured one, was I intended to add a pro charger, 35s, and more armor. I just didn’t think it could handle all that abuse at its mileage and not feel gutless. I plan to drive this truck until its last legs. There’s some noticeable power loss at 198k aside from what I’ve already added. Will a tune help?
     
  7. May 7, 2023 at 6:23 PM
    #7
    nd4spdbh

    nd4spdbh Well-Known Member

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    I doubt there is noticeable powerloss if compression is still good. Guys have gone forced induction at your mileage no problems.
     
  8. May 8, 2023 at 4:13 AM
    #8
    1 Limited Toyota

    1 Limited Toyota ISO XRunner body kit complete or pieces

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    What ever you decide, GL5 for the transfer case, and differentials. GL4 for the manual transmission.

    NEVER trust your local parts store sdvise. That 18 year old girl wasn't hired for her mechanical wisdom.
    Fun fact
    Ask for a can of compression and spark plugs for a 98 7.3 powerstroke and watch them go to the books (if they can read)
     
    Last edited: May 11, 2023
    Lexi0216 and nd4spdbh like this.
  9. May 8, 2023 at 9:53 AM
    #9
    CTSpruceMica

    CTSpruceMica Mario slows on the backstretch

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    Regardless of what brand you use...make it easy on yourself and get the squeeze pouch

    upload_2023-5-8_12-53-15.png
     
  10. May 8, 2023 at 7:19 PM
    #10
    Williston

    Williston Well-Known Member

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    Don't see any valid reason to replace a known, perfectly fine V6 with an unknown re-manufactured unit because it's approaching "xxx,xxx" miles: Replace it when it's gone, knocking, and/or drinking oil. It will probably outlast you and the next two owners. Change the diff and xfer case oil. Is it a stick? Do that too: DO NOT put GL5 gear oil in your manual transmission: You'll turn a bullet-proof 300,000+ mile/lifetime transmission into a worthless junk pile in very short order. GL4 only: you can find it out there; NO: "GL5 "compatible" with GL4" on the label.

    Do a drop-and-drain on the transmission if it's an automatic. :thumbsup:
     
    Last edited: May 8, 2023
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  11. May 8, 2023 at 8:02 PM
    #11
    kidthatsirish

    kidthatsirish Well-Known Member

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    The only GL4/5 I was comfortable with using in my gear box was the mobil 1 synthetic that specifically stated it was formulated around gear boxes with yellow metals.

    That being said, I recommend Redline's MT-90. That stuff is a GL-4 only oil that is nice and smooth.
     
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  12. May 9, 2023 at 6:45 PM
    #12
    fb40dash5

    fb40dash5 Well-Known Member

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    If no one's changed the front diff, or you don't know when it was done... go get yourself the Lexus GX drain plug, and pick up an impact hex bit socket for the original. You might thank me, when you're done swearing at the original plug. Hammer that hex in there good, and hope you have a lot of leverage, mine barely came out with persuasion from a very, very strong 1/2" air impact, after nearly rounding it out with the non-impact one I've used for years without issue.

    Oh... and definitely do NOT swap any running motor for just about any reman, and definitely NOT Jasper. Just... no.
     
  13. May 9, 2023 at 7:42 PM
    #13
    Notoneiota

    Notoneiota Claud Bawls molested my cat.

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    I use 80W-90 in diffs and transfer case. Whatever the cheapest GL5 is - usually Valvoline. Change it all every 30k. I have 215k on the truck as of today with no issues. I also recommend the Lexus "outie" plug for the front diff if you don't want to deal with hex bits breaking and rounding out the hole.
     
  14. May 10, 2023 at 1:24 PM
    #14
    Lexi0216

    Lexi0216 Member

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    I did mine at 100K and used Valvoline synthetic 75/90.
     
  15. May 10, 2023 at 1:27 PM
    #15
    Lexi0216

    Lexi0216 Member

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    I have 2 cans of compression in my garage right next to my extra Blinker fluid. What the problem? Got it on sale.
     
  16. May 10, 2023 at 1:35 PM
    #16
    Dacapster

    Dacapster Well-Known Member

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    Ask if 1D-10T fluid would work
     
  17. May 11, 2023 at 11:18 AM
    #17
    Hayden334

    Hayden334 Well-Known Member

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  18. May 11, 2023 at 2:06 PM
    #18
    Blockhead

    Blockhead Well-Known Member

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    ^^^^THIS^^^^
     
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  19. May 11, 2023 at 2:55 PM
    #19
    Williston

    Williston Well-Known Member

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    I had the diffs and xfer case oil serviced yesterday. I happened to notice the white sticker on the front diff motor/actuator that has "A-D-D Oil Only" printed on it when I checked everything for leaks after I got home. First time I ever noticed it.

    Can anyone explain what it's trying to tell people? I'm assuming it means: "75W-90", so you won't put in automatic transmission fluid, 0W-20 engine oil, STP Oil Treatment, etc in it??
     
  20. May 11, 2023 at 3:17 PM
    #20
    nd4spdbh

    nd4spdbh Well-Known Member

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    ADD oil is for the actuator only (grease really), has nothing to do with gear oil within the diff.
     
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