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Rear differential fluid level.. how much?!

Discussion in '3rd Gen. Tacomas (2016+)' started by Dank24, Apr 15, 2018.

  1. Apr 15, 2018 at 5:11 PM
    #1
    Dank24

    Dank24 [OP] Well-Known Member

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    In the manual it has several levels noted. I am not sure which one is mine...

    I have a 2017 off road auto 4x4

    F64C2EB9-E67A-4063-92BB-7805C6F0F193.jpg
     
  2. Apr 15, 2018 at 5:20 PM
    #2
    eldedo

    eldedo voted most likely eaten by a bear

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    about 1/4" below the fill plug.


    side note: currently using Lucas 85w140, non-synthetic.
     
  3. Apr 15, 2018 at 5:28 PM
    #3
    steele-taco

    steele-taco Well-Known Member

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    Do any of the * say with locker? That would be it.
     
  4. Apr 15, 2018 at 5:31 PM
    #4
    Vbpiper

    Vbpiper Well-Known Member

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    SR-71A and Dank24 [OP] like this.
  5. Apr 15, 2018 at 5:33 PM
    #5
    OregontoBajaCA

    OregontoBajaCA Well-Known Member

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    It’s 4.2 quarts for the 2017 Off Road Auto 4X4
     
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  6. Apr 15, 2018 at 5:38 PM
    #6
    2016Tacoman

    2016Tacoman Well-Known Member

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  7. Apr 15, 2018 at 5:56 PM
    #7
    Dank24

    Dank24 [OP] Well-Known Member

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    I was too looking at mobile 1, but it says LS 75-90 for mobile one. And the manual calls for LT 76-85 or equivalent . Does the limit slip on the module 1 matter?

    I was gonna go with a amsoil, but it’s a fortune
     
  8. Apr 15, 2018 at 6:10 PM
    #8
    2016Tacoman

    2016Tacoman Well-Known Member

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    Read this
    http://www.lastgreatroadtrip.com/wp-content/uploads/2010/11/gear-oil-comparison.pdf

    My dealer does not stock recommended Toyota fluid, but sells and uses the Amsoil.
    After you read that article you'll know why.
    Summary on page 19.

    Lucas is last :eek: , royal purple is down there also.
    With LSD I believe you need synthetic.

    My dealer sells lucas for $15. Not allowed to mark up.
     
    Last edited: Apr 15, 2018
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  9. Apr 15, 2018 at 6:17 PM
    #9
    Dank24

    Dank24 [OP] Well-Known Member

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    After looking at that, I should just source the amsoil tomorrow.
     
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  10. Apr 15, 2018 at 6:18 PM
    #10
    2016Tacoman

    2016Tacoman Well-Known Member

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    :thumbsup::thumbsup::thumbsup:
    Check your dealer.
     
  11. Apr 15, 2018 at 6:41 PM
    #11
    EdgeCrusher

    EdgeCrusher Well-Known Member

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    4qts 75w90
     
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  12. Apr 15, 2018 at 7:12 PM
    #12
    Vbpiper

    Vbpiper Well-Known Member

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    From what I understand, the LS (limited slip) designation is compatible with our differentials. The Mobil 1 still meets the GL-5 specification, was available locally for me, and costs significantly less than the Amsoil.
     
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  13. Apr 15, 2018 at 7:41 PM
    #13
    2016Tacoman

    2016Tacoman Well-Known Member

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    Amsoil is $15 for me at dealer. What is Mobil 1 ?
    For a 35-40K+ truck a few extra $ is minimal considering this isn't changed frequently.
     
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  14. Apr 15, 2018 at 8:02 PM
    #14
    Vbpiper

    Vbpiper Well-Known Member

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    I agree that the cost difference isn't huge, but Mobil 1 has always served me well and is easily available here. I never go off-road and rarely tow, so it works for me. If Amsoil works for you, go nuts. ;):thumbsup:
    Thanks for the link to the article. Very informative!
     
  15. Apr 15, 2018 at 8:04 PM
    #15
    2016Tacoman

    2016Tacoman Well-Known Member

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    The viscosity after shear test is what concerns me on Mobil 1.

    "the slightly higher than average price of AMSOIL Severe Gear would
    be offset by the cost savings achieved through reduced maintenance, longer lasting differentials and extended lubricant life."
     
  16. Apr 15, 2018 at 8:25 PM
    #16
    Phich

    Phich Porkchop Express

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    Black Blood of the Earth Fuel Additive
    Just changed mine out two days ago. 3rd Gen TRD OR auto gets the 4.2 quarts.
     
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  17. Apr 16, 2018 at 3:46 AM
    #17
    Dank24

    Dank24 [OP] Well-Known Member

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    Just found an individual dealer right down the road from me... not too bad since I live in the sticks haha. $17/quart
     
  18. Apr 16, 2018 at 3:49 AM
    #18
    JimboAnz

    JimboAnz #OldNorm

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    dont you just fill it up till it spills out the fill hole? if truck is level.........then let it settle, and check / top off.
     
  19. Apr 16, 2018 at 4:30 AM
    #19
    Clearwater Bill

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

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    A few OE parts from fancy trucks
    1) That is an 11 year old 'study'. Even if those results are accurate for the time of the testing, are you suggesting the lubricant industry has stood still for the last decade?

    2) Did you note that the 'winner' of the study is the firm that produced the study? That alone should create pause.

    3) The fancy signature sheets at the end? Linked in shows David Leitten is the ‎Laboratory Director - ‎Amsoil Inc. Again, a reason for pause. Notary work isn't impressive. It only means they validate the ID of the person signing. Not the content of the document.

    If you want to use lab work to support your choices, at least use work from an independent lab.

    Amsoil certainly isn't bad. But no boutique elixer is needed for these diffs. Proper wt., GL rating, clean and full. OTC gear lube from a quality manuf. is just fine.

    If you feel good paying that kind of money though, please proceed.

    Pretty much. Level F/R and L/R. Same procedure for the last 50 or 60 years.

    Simple solution is to buy 7 qts of the proper fluid (they all use the same type, and you are doing the front at the same time, right?). Do the front first, then fill the rear slowly as @JimboAnz mentions above. The worst that happens is you have some left over for the next change.

    Or just return unopened bottles if you wish.
     
    Last edited: Apr 16, 2018
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  20. Apr 16, 2018 at 4:58 AM
    #20
    2016Tacoman

    2016Tacoman Well-Known Member

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    And your independent recent study, paper, showing such detailed research ? Link please.
    Maybe it doesn't exist for a reason.
     

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