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Transfer Case oil ATF WS?

Discussion in '2.5 Gen Tundras (2014-2021)' started by Big Jeff, Jan 26, 2021.

  1. Jan 26, 2021 at 1:35 PM
    #1
    Big Jeff

    Big Jeff [OP] New Member

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    Went to my local dealer to get the fluids for front & rear diff and transfer case. They said that they could no longer sell the LF 75W for the diffs.

    They could sell me the transfer case oil, which they sold me the ATF WS. I just read in the Haynes manual and it calls for LF 75W. Is the ATF WS a replacement for the LF 75W?

    Should I just go with 75W-90 for front & rear diff and the transfer case?
     
  2. Jan 26, 2021 at 2:44 PM
    #2
    palehorse

    palehorse @grey_ghost_trdpro

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    Got all my Toyota fluids off Amazon. Used Transfer Gear Oil LF 75W for the xfer case and Differential Gear Oil LT GL5 75W-85 for diffs
     
  3. Jan 26, 2021 at 2:53 PM
    #3
    14burrito

    14burrito IG @14burrito

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    Lot of discussion, lot of opinions.

    Lot of different experiences with different weights as well.

    Search feature will yield a lot of good reads.

    Been using Ravenol myself for 40/50k issue free.
     
  4. Jan 26, 2021 at 4:01 PM
    #4
    Big Jeff

    Big Jeff [OP] New Member

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    Yup, I was cruising thru the threads and YouTube and I see a lot of people using the Ravenol. I guess I could order some off of Amazon and use the 3 qts of ATF WS that I already have when I do my transmission service.
     
    Last edited: Jan 26, 2021
  5. Jan 26, 2021 at 4:04 PM
    #5
    14burrito

    14burrito IG @14burrito

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    It really boils down to your personal experience and comfort on which fluid to run. Some run 75w90 issue free, while others do not. You could try and see what happens.

    I'm sticking with the Ravenol myself, been happy. Been thinking of sending out a used oil analysis to see how its help up over the past 30k.
     
    Last edited: Jan 26, 2021
    Big Jeff [OP] likes this.
  6. Jan 26, 2021 at 4:17 PM
    #6
    Buckaroo

    Buckaroo New Member

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    A little mixed up I think. The Toyota WS is for the automatic transmission. The diffs (both front and back ) use 75w-85 gear oil (Toyota Part #08885-02506) or Ravenol MTF1 which is about the same cost. The transfer case uses 75W gear oil, Toyota Part# 08885-81080. It is quite expensive. I have read that Toyota dealerships use the diff fluid instead. The Ravenol 75w gear oil, equivalent to the specified transfer case Toyota fluid, is MTF-3 and much less costly.

    Edit - Corrected Toyota Part Numbers
     
    Last edited: Jan 27, 2021
    deptrai likes this.
  7. Jan 26, 2021 at 6:21 PM
    #7
    Big Jeff

    Big Jeff [OP] New Member

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    The Toyota dealership told me the transfer case gets the ATF WS, I took their word for it. When I got home I looked up the specs and it calls for 75W. So my question is is the AFT WS a suitable replacement for the 75W?

    The Toyota ATF WS is $10.00 a quart.
    Ravenol 75W on Amazon is $18.69 a Liter.

    Seems the ATF WS is cheaper.
     
  8. Jan 26, 2021 at 6:54 PM
    #8
    Zebruaj

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    I would not use ATF where it calls for gear oil. WS is a low viscosity fluid. Just thicker than water.

    Dealership probably mistook TC for trans. They aren't all that smart.
     
    AzureNightmare and Big Jeff [OP] like this.
  9. Jan 26, 2021 at 8:13 PM
    #9
    DaCro210

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    Big Jeff [OP] likes this.
  10. Jan 27, 2021 at 4:30 AM
    #10
    Buckaroo

    Buckaroo New Member

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    Please note I corrected the Toyota Part numbers in Post #6.

    No - ATF WS is not suitable for your transfer case. For the Transfer Case, you will need 1.6 liters. The Toyota oil is $78.75/liter on Amazon.
    https://www.amazon.com/TOYOTA-Genuine-Transfer-Litre-08885-81080/dp/B086R57CRP

    The Ravenol MTF-3 is what I use myself for the transfer case - it's $14.83/liter on Blauparts...
    https://www.blauparts.com/shop-part...ndra-5-7l-32v-gas-n-t-v8-19517&sid=oAq5ewPqoy

    Lot of discussion that Dealerships themselves do not use the 75w Toyota Oil in the Transfer Case but instead use the 75w-85 oil that is specified for the differentials. It is $41.41/liter on Amazon. The Ravenol equivalent is MTF-1 which is $16.40/liter on Blauparts.

    FYI, you may get a better price at your Dealership on the Toyota fluids vs the Amazon sellers.
     
    FrenchToasty likes this.
  11. Jan 27, 2021 at 10:17 AM
    #11
    Big Jeff

    Big Jeff [OP] New Member

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    Thanks for the help Buckaroo!
     
  12. Jan 27, 2021 at 11:44 AM
    #12
    C.I.

    C.I. Surf, off road, sleep, repeat

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    Ravenol is a perfect replacement oil, on par if not better than Toyota's. My case is good as new after the change. Highly recommended.

    Whoever told you to use WS on the case must never be allowed to touch a car.
     
    Big Jeff [OP] likes this.

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