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Synthetic rear end oil....

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Bill in Ky, Aug 14, 2008.

  1. Aug 14, 2008 at 3:17 PM
    #1
    Bill in Ky

    Bill in Ky [OP] Well-Known Member

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    Bright White 08 Reg 4X4 2.7 5spd SR5
    I got my first 4x4 in 1972...haven't been without one! I still like Chrome!
    I have replaced the oil in the front axle, tranismission and transfer case with
    synthetic gear oil.
    The rear axle calls for a straight 90W weight, not the 75W-90W like the others.
    I can's find any 90W synthetic. Those of you that have replaced the rear end oil, what did you use?
    Thanks, Bill
     
  2. Aug 14, 2008 at 3:49 PM
    #2
    allrsdup

    allrsdup Well-Known Member

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    i believe royal purple makes it. and with rp it already has friction modifier in it for the lsd.
     
  3. Aug 14, 2008 at 3:55 PM
    #3
    Cavender76

    Cavender76 Well-Known Member

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    Clint Cavender
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    Tool Box, 2nd Filter Removed Drop In K&N
    I used 85W90 mobile 1 I have had no problem.
     
  4. Aug 14, 2008 at 7:05 PM
    #4
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

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    Will
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    getting there....
    on my 06 trd offroad prerunner, with the rear locker, i used mobil1 75w90, no problems at all.
     
  5. Aug 14, 2008 at 7:15 PM
    #5
    Janster

    Janster Old & Forgetful

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    Jandy
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    2016 GMC Canyon SLT w/ LineX and....
    Do you have the LSD? (non-Auto LSD)

    If Yes - you need oil + friction modifier. The manual should say how much it needs. Or - you can try getting gear lube that already had the friction modifier in it. Like mentioned earlier - Royal Purple and Amsoil Severe Gear also had the friction modifier in it.

    If you don't have the LSD, you don't need friction modifier.
     
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