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Which rear diff fluid??

Discussion in '1st Gen. Tacomas (1995-2004)' started by Hektor, Jan 4, 2013.

  1. Jan 4, 2013 at 11:26 AM
    #1
    Hektor

    Hektor [OP] Well-Known Member

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  2. Jan 4, 2013 at 12:37 PM
    #2
    sirsaechao

    sirsaechao Well-Known Member

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    To much to list...see sig for more...
    Mobil 1 cause it is available. Most places I can't get Redline or Royal Purple w/o having to order it.
     
  3. Jan 4, 2013 at 2:34 PM
    #3
    Devout

    Devout Well-Known Member

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    I like Redline because it is a Type V synthetic, whereas Mobil is a type IV.

    I believe Royal Purple is also a Type V.
     
  4. Jan 4, 2013 at 2:40 PM
    #4
    GP3

    GP3 Well-Known Member

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    Wrong.
     
  5. Jan 4, 2013 at 2:43 PM
    #5
    Hektor

    Hektor [OP] Well-Known Member

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  6. Jan 4, 2013 at 2:50 PM
    #6
    GP3

    GP3 Well-Known Member

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    Front: stock suspension, 12" wide fiberglass fenders Rear: stock suspension, 10" wide fiberglass fenders
    Oil type:
    Hypoid Gear Oil API GL–5

    Recommended oil viscosity:
    Front:
    SAE 75W–90

    Rear:
    Above –18C (0F)
    SAE 90

    Below –18C (0F)
    SAE 80W or 80W–90
     
  7. Jan 4, 2013 at 3:33 PM
    #7
    Hektor

    Hektor [OP] Well-Known Member

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    One last quick question. Im using toyota type 4 for the transmission, ot should be any problem running synthetic on the rear diff correct??
     
  8. Jan 4, 2013 at 3:34 PM
    #8
    LexusIS808

    LexusIS808 Well-Known Member

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  9. Jan 4, 2013 at 3:35 PM
    #9
    Devout

    Devout Well-Known Member

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    Show me where it says Type V in that literature. :rolleyes:
     
  10. Jan 4, 2013 at 3:36 PM
    #10
    LexusIS808

    LexusIS808 Well-Known Member

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    toyota type 4 is correct and you need 4-4.5 quarts. the manual is an error.
     
  11. Jan 4, 2013 at 3:51 PM
    #11
    Devout

    Devout Well-Known Member

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    I may have caused some confusion, so I'll try to clarify;

    GL vs Type.

    GL-4 is for bronze syncos and other gearboxes with bronze.

    GL-5 is for gearboxes without bronze. One of the friction modifiers in GL-5 will chemically attack bronze.


    Type IV synthetic is a stabilized Dino oil the Mobil won the right to call synthetic by suing the FTC for the right to do so.


    Type V is a truly synthetic ester formulated turbine oil. The demands of jet turbine bearings far exceed those of a gasoline piston engine.


    So, back to the original question. I do not have a Taco manual in front of me so I can't answer the weight question, but I can answer a few others.

    Don't run GL-5 in a tranny that specifies GL-4 or you will ruin it.

    MOST differentials run GL-5.

    Diff oil with the limited slip additive can be run in NON limited slip rear ends, and diff oil without the limited slip additive can be run in limited slip rear ends PROVIDED YOU INCLUDE THE FRICTION MODIFIER ADDITIVE.
     
  12. Jan 4, 2013 at 3:55 PM
    #12
    Devout

    Devout Well-Known Member

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    Is that for the tranny or rear diff? :)
     
  13. Jan 4, 2013 at 3:59 PM
    #13
    LexusIS808

    LexusIS808 Well-Known Member

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  14. Jan 4, 2013 at 4:11 PM
    #14
    Hektor

    Hektor [OP] Well-Known Member

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    For tranny
     
  15. Jan 4, 2013 at 4:16 PM
    #15
    Hektor

    Hektor [OP] Well-Known Member

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  16. Jan 4, 2013 at 4:21 PM
    #16
    LexusIS808

    LexusIS808 Well-Known Member

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    yah took me FOREVER to make my decision but redline 58304 75w-90 NON limited slip and you need EXACTLY 3 quarts. That works! Have it iin my rear diff since late 2011 and NEVER had any problems. GO FOR IT!! cheap on Amazon!! free ship too
     
  17. Jan 4, 2013 at 4:23 PM
    #17
    GP3

    GP3 Well-Known Member

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    I didn't know GL rating was different from "Type". News to me.
     
  18. Jan 4, 2013 at 4:44 PM
    #18
    Devout

    Devout Well-Known Member

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    I understand. I'm always learning more about lubricants too. :)

    It can get tough to cut through the marketing hype and internet rumors sometimes.


    Kevin Cameron and Motorcycle Consumer News have published some really good information in the past.
     

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