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Rear Diff Oil. Synthetic or Conventional

Discussion in '2nd Gen. Tacomas (2005-2015)' started by IB Slingin, Apr 25, 2012.

  1. Apr 25, 2012 at 10:08 AM
    #1
    IB Slingin

    IB Slingin [OP] Well-Known Member

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    Im getting ready to change my rear diff oil for the first time('07 TRD PreRunner w/ the LSD sticker). I want to use Amsoil Severe Gear synthetic gear oil. Ive read conflicting stories about people having problems with synthetic oil in the rear differential. Im planning on using a tube of friction modifier whether I need it or not. Does that sound OK? If I need to run conventional oil, which one do you guys recommend? Thanks.
     
  2. Apr 25, 2012 at 10:21 AM
    #2
    IB Slingin

    IB Slingin [OP] Well-Known Member

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    Thanks. Good to hear. Did you have to add friction modifier. Some synthetics say they allready have the additives and none is needed.
     
  3. Apr 25, 2012 at 10:30 AM
    #3
    river rat 69

    river rat 69 Well-Known Member

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    NO Chrome,3" NFab's steps,TRD skid,Wet okie's.011 grill, k&n,5100's,All this comes right off when the old lady says let's go get a NEW ONE!!!
    Did my lsd at 30k it was dirty, also went with amsoil, no additives do not need them with amsoil,, Jim
     
  4. Apr 25, 2012 at 10:35 AM
    #4
    IB Slingin

    IB Slingin [OP] Well-Known Member

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    Thanks Jim! Did you use 3 quarts? Would it hurt to add the friction modifier regardless?
     
  5. Apr 25, 2012 at 10:35 AM
    #5
    mikewho

    mikewho Well-Known Member

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    Bilstein 5100's, OME 885x's, Toytec 1.5 AAL's, shorty antenna x, Trd sport hood, bed extender, ProComp7098's, BFG 275's, K&N filter, black anzo led tails, OEM roof rack, sock monkey bed decal, extra d rings, weathertechs
    Sub'd
     
  6. Apr 25, 2012 at 10:39 AM
    #6
    river rat 69

    river rat 69 Well-Known Member

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    NO Chrome,3" NFab's steps,TRD skid,Wet okie's.011 grill, k&n,5100's,All this comes right off when the old lady says let's go get a NEW ONE!!!
    Not sure, just go up to filler plug hole. With amsoil add nothing the gear oil has all the good stuff in there, Thats y it cost your first born:eek:..... Jim
     
  7. Apr 25, 2012 at 2:13 PM
    #7
    aficianado

    aficianado Well-Known Member

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    back to bone stock.
    i used redline.

    they have the same formula with and without the limited slip additive.
     
  8. Apr 25, 2012 at 2:16 PM
    #8
    1GR

    1GR Toyota Dealer Technician

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    As long as you have enough friction modifier, any conventional or synthetic oil will do. All based on preferance at that point. I'd personally recommend Lucas oil, or at least a blend of Lucas with conventional (Or synthetic), and the friction modifier
     
  9. Apr 25, 2012 at 5:04 PM
    #9
    badger

    badger Well-Known Member

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    I've run Amsoil and I like it, but I run Redline now because I like their additive package better. I would definitely use a synthetic if you use the truck hard. Things like towing or load hauling. The synthetics lower friction and operating temperatures. Some of the oils that claim to have LSD additives don't have enough for the Toyota. I think the additive is just a 4oz bottle from Ford, so I would add it regardless.
     
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