1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Tranfer Case Lubrication requirements, 2014 and above

Discussion in '3rd Gen Tundras (2014+)' started by btanchors, Jan 25, 2017.

  1. Jan 25, 2017 at 8:58 AM
    #1
    btanchors

    btanchors [OP] New Member

    Joined:
    Jan 25, 2017
    Member:
    #6091
    Messages:
    31
    Gender:
    Male
    I have done some research into gear oils, particularly on the "75W" requirement for the transfer case. I am about to acquire my third Tundra, a 2017 4WD. On my previous Tundras, a 2006 and a 2011, I used Amsoil 75W-90 in all three gear compartments (front and rear diff, as well as transfer case). The 2011 actually spec'd a 75W-85 in the rear diff, but I checked with Amsoil - they still recommend their 75W-90. Redline makes a 75W-85, so naturally they recommend it for the rear diff.

    When I saw the 75W requirement for the transfer case in the 2017, I had some concerns about simply using 75W-90 as I have been before. This requirement became effective with the 2014 model year, the year Toyota did a "refresh" on the Tundra. Prior to that, the recommendation was for 75W-90.

    I contacted BOTH Amsoil and Redline for their recommendation for a 75W transfer case oil. Both have NO recommendation for this compartment. Amsoil still recommends their 75W-90, stating it will offer a bit more protection than a 75W-85. I actually spoke to Redline's technical support line. They stated the reason they have no recommendation for the transfer case is that Toyota has not released the specifications for this 75W oil. He also stated that transfer cases have been known to have parts in them that require very specific frictional characteristics of its lubricant. Since they (Redline) doesn't know what those characteristics might be, they cannot formulate an oil, or determine if an existing product they have would be suitable. I suspect this is the case with Amsoil as well.

    I also checked the viscosity ratings. Take a look at the following chart:
    Automotive20Gear20Lubricant20Viscosity20_d986ca764b07a4071b55adc8a57681e7673bfde4.jpg
    As you can see, the minimum viscosity of a 75W at 100 degrees Centigrade (Operating temperature, or perhaps a bit above) is only 4.1 cSt. But the minimum viscosity of a 90 weight oil at the same temperature is 13.5 cSt.

    This means if you put a 75W-90 in your transfer case, its viscosity will be over 3 times as thick as what is recommended. And we still do not know whether a regular 75W-90 gear oil has the proper frictional characteristics, as the person at Redline pointed out.

    Now, here is an image of the product Toyota recommends for the Transfer Case:
    Toyota_75W_zpsrmkmuos9_30ca0838a5fd969f46b026ec4c70be4b3f8aa09a.jpg
    Note that the image states the product is specifically for the Transfer Case - not for manual transmissions or differentials, but for transfer cases. It is also VERY expensive - the cheapest I have heard for this product is over $31 per quart. So this could be a very special oil - it is certainly much thinner than regular 75W-90 at operating temperature.

    Now, here is my SPECULATION: I doubt the design of the transfer case changed in the 2014 model year and beyond. I suspect they reduced the viscosity to improve and/or maintain the Tundra's miles per gallon rating. Thus I suspect, but cannot prove (or find an authoritative statement from Toyota) that 75W-90 is OK for the transfer case. So, put 75W-90 in the transfer case at your own risk. I have heard anecdotal comments on this and other forums that dealers are still using 75W-90.

    As for me, I still haven't decided what to use. I like to change fluids earlier on new vehicles. I will be taking delivery of my 2017 Tundra in early March (it's on order) so I have about 6-8 weeks to make up my mind.

    What are others using in their transfer cases in their 2014 and newer Tundras? Have you experienced any issues using 75W-90?
     
    driverdog, mverkaik and Black Wolf like this.
  2. Jan 25, 2017 at 10:56 AM
    #2
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    73
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2015 Blue SR5 TRD
    ARE CX Cap, Swing Case, WeatherTech Floorliners, Sumo Springs, and Tinted windows
    I am at 30k. I just changed out the rear diff and need to do the T-case and front diff. I was planning to uses 75W-90 but obviously some more research is needed.
    I did add a 3.8ish quart drain and fill for the trans at 30k. The fluid looked pretty good coming out but I like knowing :)
     
  3. Jan 26, 2017 at 8:01 AM
    #3
    btanchors

    btanchors [OP] New Member

    Joined:
    Jan 25, 2017
    Member:
    #6091
    Messages:
    31
    Gender:
    Male
    After digging further, I have discovered that the supplier for the transfer case in the 4WD Tundra, beginning with the 2014 model year, changed from a Japanese supplier to Borg-Warner. So, this means the change in the required lubricant coincided with the change in the supplier of the transfer case. Here is where I found this information:
    http://www.tundraheadquarters.com/blog/borgwarner-toyota-tundra-transfer-case/
     
    Wynnded and driverdog like this.
  4. Jan 26, 2017 at 8:21 AM
    #4
    csuviper

    csuviper Moderator Staff Member

    Joined:
    Jan 6, 2014
    Member:
    #38
    Messages:
    16,288
    Gender:
    Male
    First Name:
    Brian
    Broomfield, CO
    Vehicle:
    2019 TRD Sport CM 5.7L 4X4
    Some Mods :) See build thread for details
    I am pretty sure if you take it in for service Toyota replaces with you 75W-90. Might want to call a dealership to ask.
     
    15whtrd likes this.
  5. Jan 26, 2017 at 6:47 PM
    #5
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    73
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2015 Blue SR5 TRD
    ARE CX Cap, Swing Case, WeatherTech Floorliners, Sumo Springs, and Tinted windows
    My dealer told me that is what they use. So it would be good to know if that is an OK thing or does the special oil have an additive for the special clutch?
     
  6. Jan 26, 2017 at 6:53 PM
    #6
    Wynnded

    Wynnded Smart. Ass.

    Joined:
    Apr 20, 2014
    Member:
    #379
    Messages:
    2,108
    Gender:
    Male
    Rockies
    Vehicle:
    2011 RCSB S/C'd 5.7L AWD Tundra
    OEM Upgrades: TRD PRO BBS Wheels TRD S/C, OVTune and +2 psi pulley TRD Rear Sway Bar Limited mirrors (auto darkening/backup camera/power fold) Limited Grill Stubby Antenna Automatic Climate Controls Automatic Headlamp Mod Sequoia Front Sway Bar Sequoia Transfer Case Sequoia Leather Steering Wheel Sequoia Limited Gage Cluster Sequoia LED Headlamps Window Tint Fake Manual Transmission Mod 10" BAMufflers Stainless Catback Engine Block Heater
    Special clutch? What is this of which you speak?
     
  7. Jan 26, 2017 at 6:56 PM
    #7
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    73
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2015 Blue SR5 TRD
    ARE CX Cap, Swing Case, WeatherTech Floorliners, Sumo Springs, and Tinted windows
    According the the article posted above:
    "BorgWarner’s transfer case uses an electromagnetic-based synchronization system to synchronize the front and rear axle speeds before locking them together. Unlike conventional mechanical synchronization systems, BorgWarner’s electromagnetic-based system provides a smooth, quiet and consistent transition from two-wheel to four-wheel drive,” according to a BorgWarner press release."

    I am betting that the synchronization system has a clutch pack of sorts incorporated.

    I would love to know how it works.
     
    Wynnded likes this.
  8. Jan 26, 2017 at 6:58 PM
    #8
    Wynnded

    Wynnded Smart. Ass.

    Joined:
    Apr 20, 2014
    Member:
    #379
    Messages:
    2,108
    Gender:
    Male
    Rockies
    Vehicle:
    2011 RCSB S/C'd 5.7L AWD Tundra
    OEM Upgrades: TRD PRO BBS Wheels TRD S/C, OVTune and +2 psi pulley TRD Rear Sway Bar Limited mirrors (auto darkening/backup camera/power fold) Limited Grill Stubby Antenna Automatic Climate Controls Automatic Headlamp Mod Sequoia Front Sway Bar Sequoia Transfer Case Sequoia Leather Steering Wheel Sequoia Limited Gage Cluster Sequoia LED Headlamps Window Tint Fake Manual Transmission Mod 10" BAMufflers Stainless Catback Engine Block Heater
    Ah, thank you very much. I have a pre-14, so my reading didn't quite extend to that article.
     
  9. Jan 26, 2017 at 7:15 PM
    #9
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    73
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2015 Blue SR5 TRD
    ARE CX Cap, Swing Case, WeatherTech Floorliners, Sumo Springs, and Tinted windows
    driverdog and Wynnded like this.
  10. Jan 26, 2017 at 7:25 PM
    #10
    Mike

    Mike Tread lightly.

    Joined:
    Jan 13, 2014
    Member:
    #87
    Messages:
    3,671
    Gender:
    Male
    First Name:
    Mike
    south carolina
    Vehicle:
    2003 tundra sr5 4x4 stepside....
    yep bank account is running low from it..
    Borg Warner is used by euro cars mainly. ( I think Ford uses them too in transfer case I believe don't hold me to that or they changed suppliers again)
     
  11. Jan 27, 2017 at 4:57 AM
    #11
    btanchors

    btanchors [OP] New Member

    Joined:
    Jan 25, 2017
    Member:
    #6091
    Messages:
    31
    Gender:
    Male
    Very useful information (regarding the clutch). This implies to me that frictional characteristics ARE important, which further implies the proper fluid is important. For people that actually installed 75W-90, I wonder how often they use 4WD. If 75W-90 is problematic, the issue would show up during attempted engagement of the 4WD. I further suspect the problem would tend to manifest itself most in very cold weather, since 75W-90 is so much thicker. Engagement of 4WD during very cold weather is a time when people engage 4WD - when there is snow and ice on the road.
     
    driverdog likes this.
  12. Jan 27, 2017 at 5:49 AM
    #12
    mverkaik

    mverkaik New Member

    Joined:
    Aug 29, 2016
    Member:
    #4368
    Messages:
    73
    Gender:
    Male
    First Name:
    Mike
    Hamilton, MI
    Vehicle:
    2015 Blue SR5 TRD
    ARE CX Cap, Swing Case, WeatherTech Floorliners, Sumo Springs, and Tinted windows
    But it will only manifest itself if you are engaging 4WD while one axle is spinning faster than the other. I suspect that most of us will never see this because for the most part we don't throw it in 4WD while spinning. Most of us will let off the gas first.

    I am on the quest for a suitable alternative to the $60 per quart fluid.
     
    15whtrd likes this.
  13. Jan 27, 2017 at 5:31 PM
    #13
    Paulskie

    Paulskie New Member

    Joined:
    Dec 2, 2014
    Member:
    #770
    Messages:
    197
    Gender:
    Male
    First Name:
    Paul
    Vehicle:
    2014 Attitude Black 1794
    SABM, TRD sway bar, interior LED swap, Husky's in front and WeatherTech in the back, TRD Pro Grill, Rigid Fod lights, Rigid 40" E-series, Rigid 32" hood light, BLHM with RX350/STI projectors, 4% tint, 50% windshield.
    Wow, that's a lot of great information. I plan on changing all of the fluids soon and this is a HUGE help. Thanks.
     
  14. Jan 28, 2017 at 9:55 AM
    #14
    Spvrtan

    Spvrtan Mod In Training | MIT

    Joined:
    Apr 2, 2015
    Member:
    #1140
    Messages:
    1,463
    Gender:
    Male
    First Name:
    Kris
    San Diego, CA
    Vehicle:
    Black '14 CM SR5 w/ SC; 40s on 17s; 4.88s
    Sub'd for results.
     
  15. Apr 26, 2017 at 3:22 PM
    #15
    btanchors

    btanchors [OP] New Member

    Joined:
    Jan 25, 2017
    Member:
    #6091
    Messages:
    31
    Gender:
    Male
    All,

    For those that are curious, I just posted a Virgin/Unused oil analysis of this 75W Transfer Case Oil. There is no doubt, this additive package is VERY different from every normal 75W-90 Gear Lube I have seen. I have committed to using only this OEM fluid in my 2017 Tundra. See the analysis and subsequent discussion here.
     
    ColoradoTJ, Bannock452 and Wynnded like this.
  16. Apr 27, 2017 at 11:28 PM
    #16
    Bannock452

    Bannock452 New Member

    Joined:
    Apr 12, 2016
    Member:
    #3114
    Messages:
    309
    Gender:
    Male
    First Name:
    Brandon
    Murrieta, CA
    Vehicle:
    2016 White Crewmax 4x4 SR5
    King coilovers 35x12.50-18
    Wow great information here!! Thank you for sharing. I will be doing my differential oils as well as transfer case soon at 15k. I will definitely be looking into the OEM Toyota brand now. I would have just bought the synthetic 75w on the shelf... I'm curious what other people have used in their 14+?
     
  17. Nov 2, 2017 at 8:32 PM
    #17
    Bannock452

    Bannock452 New Member

    Joined:
    Apr 12, 2016
    Member:
    #3114
    Messages:
    309
    Gender:
    Male
    First Name:
    Brandon
    Murrieta, CA
    Vehicle:
    2016 White Crewmax 4x4 SR5
    King coilovers 35x12.50-18
    Just going to add this for others reading this thread.
    I changed all my differentials with the same Mobile 1 75w-90 gear oil at 15k miles. Stock oil came out pretty clean but the drain plug magnets were pretty dirty.
    Also used the same Mobile 1 75w-90 for my Transfer case. I’ve driven offroad a few times (using4wd) and put 5k since the oil change and truck still switches into 4x4 perfectly normal. I personally could not find this fancy expensive Toyota gear oil (neither could any local dealers) so I opted to try the normal stuff and have no issues. Going to change all my differentials every 15-30k
    820DEF1D-4E80-44B8-B66B-8EEE71FE1C41.jpg

    552F507E-19C8-4C29-B9B7-48FD73FB3208.jpg
    9DC2973E-831F-44C0-9659-C4B028A4CB42.jpg
     
    15whtrd likes this.
  18. Nov 2, 2017 at 8:41 PM
    #18
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    1,608
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    Research from a other forum, "I" is not myself.


    "Has anyone used RAVENOL J1C1003 SAE 75W Manual Transmission Fluid - MTF-3 Full Synthetic in place of the OEM 75W transfer case oil #08885-81080 ? The Ravenol is supposed to be the equivalent to Toyota 08885-81081, which is supposedly the same as 08885-81080, but packaged for Euro/Asian markets according to some Tacoma and 4Runner forums. The Ravenol is $15 on Amazon, as opposed to $55 for the Toyota fluid. Amazon reviews claim it is an exact match for 2014+ Tundra transfer case fluid.

    Apparently there are a couple postings in Russian forums showing that 08885-81081 is actually a can of 08885-81080 with a new label slapped on for Toyota Motor Europe.

    The Ravenol application guide on their website recommends their SAE 75W Manual Transmission Fluid - MTF-3 for 2014+ 5.7L (3UR-FBE) transfer case. Oil Guide - Ravenol"



    "I spoke to a rep at Ravenol America and he said 08885-81080 and 08885-81081 are the same fluid. Therefore, the Ravenol should be a suitable substitute for 08885-81080. Obviously all I have to go off of is his word. But the Toyota manual seems less adamant about using the OEM fluid in the transfer case as opposed to the transmission. I purchased a couple quarts and will give it a shot soon"
     
  19. Nov 12, 2017 at 6:48 AM
    #19
    UTTundra

    UTTundra New Member

    Joined:
    Aug 4, 2017
    Member:
    #8898
    Messages:
    651
    Gender:
    Male
    First Name:
    Lou
    Utah
    That was my post on the other forum. I've had the Ravenol in for a week now. The OEM fluid I replaced was a bit low and filthy. Transfer case has been performing as expected for the last week. Prior to changing, it would sometimes take awhile for the vehicle to shift in and out of 4HI while driving. Seems to be much quicker now.
     
    14burrito likes this.
  20. Nov 12, 2017 at 7:10 AM
    #20
    Pr4sno

    Pr4sno New Member

    Joined:
    Nov 7, 2017
    Member:
    #10822
    Messages:
    15
    Gender:
    Male
    Fort Collins, CO
    Borg Warner makes the velvet drive in my ski boat. It was built in 1993 using that tech and it is still as smooth as any brand new transmission. It uses 10wt tractor oil and switching to the new dextron 3 recommended by the dealer caused it to shift rough.

    I went back to 10wt and she's butter smooth again.

    Borg loves single weights in their designs, and they love weird oil weights. My experience tells me to use what they recommend for smooth operation.

    The brand didn't matter, but like I had many options for 10wt tractor oil not from tractor supply...and not in a 5 gallon pail...

    Thanks to Borg for a reliable trans (ridiculously reliable) and thanks to the internet for taking my money to buy single quarts of weird weight oil.
     
    Last edited: Nov 12, 2017
    4x4_Angel and Wynnded like this.
  21. Nov 22, 2017 at 8:37 PM
    #21
    acmesupply

    acmesupply New Member

    Joined:
    Dec 9, 2016
    Member:
    #5501
    Messages:
    188
    Vehicle:
    2018 SR5 CM Silver TRD
    Hello, I have purchased the Ravenol 75wt as mentioned above. I will send it off for a virgin oil analysis. Please anybody speak up if it has already been done to compare to btanchors virgin sample. Thanks
     
    Last edited: Nov 22, 2017
    UTTundra likes this.
  22. Nov 22, 2017 at 9:23 PM
    #22
    ColoradoTJ

    ColoradoTJ jberry813fanclub.com Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    18,095
    Gender:
    Male
    First Name:
    Chris
    Colorado
    Vehicle:
    GMC 3500
    Fuzzy Mirror Dice

    See post #16, select the link.
     
    14burrito likes this.
  23. Nov 22, 2017 at 9:35 PM
    #23
    ColoradoTJ

    ColoradoTJ jberry813fanclub.com Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    18,095
    Gender:
    Male
    First Name:
    Chris
    Colorado
    Vehicle:
    GMC 3500
    Fuzzy Mirror Dice
    For me, not a great thing that Toyota went this route on T-cases. Making the wheel a square is not helping forward movement.
     
    BlueFalconActual likes this.
  24. Nov 22, 2017 at 9:38 PM
    #24
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    1,608
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    ....since when has toyota been "moving forward"? IMHO good For them moving past that as a slogan.
     
    ColoradoTJ likes this.
  25. Nov 22, 2017 at 9:40 PM
    #25
    ColoradoTJ

    ColoradoTJ jberry813fanclub.com Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    18,095
    Gender:
    Male
    First Name:
    Chris
    Colorado
    Vehicle:
    GMC 3500
    Fuzzy Mirror Dice
    Since about 2010.
     
  26. Nov 23, 2017 at 7:43 AM
    #26
    BlueFalconActual

    BlueFalconActual Field Day Inspector Extraordinaire

    Joined:
    Jun 1, 2016
    Member:
    #3495
    Messages:
    1,633
    Gender:
    Male
    First Name:
    Kevin
    29 Palms, CA
    Vehicle:
    Tundra-less
    Just flipped through the owners manual of my new Taco and saw it uses the same goofy oil weight for it's transfer case. Sonofabitch.
     
    BakNBlk2014 and 14burrito like this.
  27. Nov 23, 2017 at 2:06 PM
    #27
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    1,608
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    And I believe FJ Cruisers and for runners use this as well in the transfer case starting in 2010 I believe
     
  28. Nov 23, 2017 at 9:17 PM
    #28
    BakNBlk2014

    BakNBlk2014 So Impossibly Black

    Joined:
    Jun 26, 2017
    Member:
    #8287
    Messages:
    656
    First Name:
    Donald
    Virginia Beach VA
    Vehicle:
    2014 limited cm attitude black 4x
    BDS 4 1/2 Nitto Terra Grappler 35x12.5/18 BW Fender Flares Moto Metal 970 Wheels Leer Tonneau Bed Cover Black Plastidip Grill CF Wrap Interior AJT Shift Knob 35% Tint Weather Tech Mats Toyota Bed Mat AFE Intake
  29. Nov 24, 2017 at 5:04 AM
    #29
    aperezsh

    aperezsh TRUCK GANG!!!!

    Joined:
    Dec 31, 2015
    Member:
    #2349
    Messages:
    1,918
    Gender:
    Male
    First Name:
    Ali
    So-Cal (San Diego East County),Arizona and Hawaii
    Vehicle:
    16 Tundra SR5 4x4 Crew Max Magnetic Gray Metallic
    A little this and that...Broke now

    You cheating on us with a Taco??
     
  30. Nov 26, 2017 at 1:24 PM
    #30
    rodm1

    rodm1 New Member

    Joined:
    Aug 5, 2017
    Member:
    #8916
    Messages:
    101
    Gender:
    Male
    It looks like Ravenol has a fluid recommendation for the Tcase on their vehicle search.

    We all should pool in a few dollers and have some of these oddball fluids tested. Maybe Roman has the resources and could get the fluids tested.


    http://www.ravenol.de/en/oil-guide.html
     
    Last edited: Nov 26, 2017
    Watt maker likes this.

Products Discussed in

To Top