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Why does the manual say I don't ever need to change my diff oil?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by KPT, Mar 23, 2011.

  1. Mar 23, 2011 at 1:05 PM
    #1
    KPT

    KPT [OP] sees what you did there.

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    I'm coming up on 30K miles here so I was looking at the "Scheduled Maintenance Guide" that came with my owners manual.

    It says that at 30K, the rear diff oil change is recommended "only for Preunners and 4wd vehicles with an optional limited slip differential". It goes on to say that those trucks without a limited slip only need to "inspect" the diff oil....I have a 2009 Prerunner SR5, which does not have a mechanical LSD.

    So I got to looking through the other mileages and at no point at all does it say the diff oil in a non-lsd truck needs to be changed, ever.

    This seems ridiculous to me, and I'm going to change the diff oil at 30K regardless, unless someone convinces me otherwise.

    I wanted to see what others have to say about this, or am I just reading it wrong? :notsure:
     
  2. Mar 23, 2011 at 1:08 PM
    #2
    BrokenTusk

    BrokenTusk I support a velociraptor free workplace.

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    Marcelasaurus
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    I'm sitting at the 50,242 km mark right now. I'll be changing mine come spring regardless
     
  3. Mar 23, 2011 at 1:12 PM
    #3
    TexAggie

    TexAggie Well-Known Member

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    I think it means change as needed. I would go ahead and change it too, it wont hurt.
     
  4. Mar 23, 2011 at 1:14 PM
    #4
    macgyver

    macgyver Well-Known Member

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    I changed mine to 75W-90 Mobil 1 synthetic at around 45k miles. I'm at 86k now and will be changing it again soon.
     
  5. Mar 23, 2011 at 1:31 PM
    #5
    KPT

    KPT [OP] sees what you did there.

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    That's what I assume, but one would think that Toyota might suggest that it would be "needed" at some point in the first 120,000 miles of the life of the vehicle :laugh:
     
  6. Mar 23, 2011 at 1:34 PM
    #6
    whippersnapper02

    whippersnapper02 Well-Known Member

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    Since an open diff doesn't see heat and wear of a LSD diff there is less of a need to change the oil. I changed mine thisbpast weekend at 30K miles anyway.
     
  7. Mar 23, 2011 at 1:34 PM
    #7
    steve o 77

    steve o 77 braaap

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    I would switch it over to synthetic and let that go 60k.
     
  8. Mar 23, 2011 at 1:35 PM
    #8
    KPT

    KPT [OP] sees what you did there.

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    Katskin leather interior, Satoshi grille, Bilstein 5100's @ 1.75, rear leaf TSB, magnaflow exhaust, 18x9 BBS RW's, 275/65/18 Nitto TG's, black headlights, black taillights, Hella Supertones, weathertechs, EFX tri-fold tonneau, n-Fab steps
    Did the oil look like it needed to be changed in your opinion?
     
  9. Mar 23, 2011 at 1:45 PM
    #9
    whippersnapper02

    whippersnapper02 Well-Known Member

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    There was some crap on the diff magnets but nothing serious. The oil was a little darker than it is new but it wasn't black. I'm sure I would have been fine if I let it go to 50K like I had originally planned.
     
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