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Differential / X-case oil help

Discussion in '2nd Gen. Tacomas (2005-2015)' started by CO_0321er, Jul 31, 2015.

  1. Jul 31, 2015 at 5:56 PM
    #1
    CO_0321er

    CO_0321er [OP] Well-Known Member

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    Hello guys, I have a 2012 Trd sport Dbl can. I recently changed the oil in the front and rear differentials, and transfer case. I am a cheapo and decided to get the 'autozone' 75w-90 gear oil. It was the cheapest oil they had at $7.11 per quart. Anyway I changed all the oil. After readin some threads I realized how important quality oil is in these areas. Would you recommend I change the oil again to a higher quality oil to further protect the parts? Also I am thinking about going to full synthetic. Can I use 75w-90 full synthetic oil in the front and rear diff, and the transfer case? If so is it okay if I just drain the old oil and fill back up with the synthetic, or do I have to do something special to allow for synthetic? Thank you guys.
     
  2. Jul 31, 2015 at 6:00 PM
    #2
    Steves104x4

    Steves104x4 Well-Known Member

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    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    You changed the oil. That's good. Change it again in a year or two....or three.
     
    File IFR likes this.
  3. Jul 31, 2015 at 6:03 PM
    #3
    bubbabud

    bubbabud Well-Known Member

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    You are fine with the oil you used. If you are anel about oil and want to use synthetic get out your wallet and pour it in no other adjustment needed
     
  4. Jul 31, 2015 at 6:13 PM
    #4
    Pappa Weasel

    Pappa Weasel Well-Known Member

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    I would wait. If you are doing a lot of off-road and towing I'd give it about 10,000 miles and upgrade. I use Lucas synthetic and change mine every 30,000. I tow almost everyday and a lot of general forest road off-road.
    I know people who never change the oil and drive it till it drops. Though they may only get 100,000 miles. If you are doing normal driving I wouldn't sweat it. I have 140,000 on my 2009 and it drives like new. Oil changes with synthetic tire rotation,and lube the drive train every 5,000. Everything else 30,000 miles.
    When you change it just drain the old really well and replace. Remember the LSD fluid in the rear if it requires it!
    :cheers:
     
  5. Jul 31, 2015 at 6:58 PM
    #5
    CO_0321er

    CO_0321er [OP] Well-Known Member

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    What would you recommend for lsd fluid. Also how much do I add? And do I just put it in the same way as the oil? Thanks for the responses.
     
  6. Aug 1, 2015 at 6:19 AM
    #6
    bubbabud

    bubbabud Well-Known Member

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    2 in spacer lift front 2, in AAL rear [tundra leaf] , flip up tow mirrors, ARE shell electric brake controller and cooper ATP 265/r70x16 tires on stock TRD wheels
    LSD fluid is a friction modifier used only in mechanical limited slip differentials which you do not have
     
  7. Aug 1, 2015 at 7:33 AM
    #7
    Pappa Weasel

    Pappa Weasel Well-Known Member

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    ^^^ What he said! I have a 2009 AC which needs it.
     
  8. Aug 1, 2015 at 1:59 PM
    #8
    bigmooze

    bigmooze Well-Known Member

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    ^ are you sure? I thought 2008 was the last year with mechanical LSD. My 09 AC has eLSD
     
  9. Aug 1, 2015 at 4:00 PM
    #9
    Pappa Weasel

    Pappa Weasel Well-Known Member

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    Says right on the axle!
    4x4 2.7cyl.
     
  10. Aug 1, 2015 at 4:01 PM
    #10
    bigmooze

    bigmooze Well-Known Member

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    Fair enough!
     
  11. Aug 1, 2015 at 4:13 PM
    #11
    slodc4

    slodc4 Conceal Carry

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    East coast gear supply says to never use synthetic

    I wouldn't use it on Oem
     
  12. Aug 1, 2015 at 4:37 PM
    #12
    bigmooze

    bigmooze Well-Known Member

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    Why do they recommend against synthetic?
     
  13. Aug 1, 2015 at 5:18 PM
    #13
    Marshall R

    Marshall R Well-Known Member

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    none
    I've never touched my 07. Still going strong at 152,000 miles. BIL has 220,000 miles and has never changed his dif or transfer case oil.
     
  14. Aug 1, 2015 at 5:27 PM
    #14
    slodc4

    slodc4 Conceal Carry

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    I was sitting in their office talking to the owner about it and I completely forgot the reasoning behind it. On their warranty paper it says if you use synthetic it will void the warranty. He told me the only returns they've had was do to not using the Lucas oil they recommend and using a synthetic
     
  15. Aug 1, 2015 at 5:40 PM
    #15
    bubbabud

    bubbabud Well-Known Member

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    I believe Lucas is a synthetic could be wrong.
     
  16. Aug 1, 2015 at 5:49 PM
    #16
    slodc4

    slodc4 Conceal Carry

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    They make both synthetic and non. Hang on a sec and I'll show you a pic of what they use
     
  17. Aug 1, 2015 at 5:52 PM
    #17
    slodc4

    slodc4 Conceal Carry

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