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Gearbox oil?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by eng.moh.4u, Apr 1, 2017.

  1. Apr 1, 2017 #1
    eng.moh.4u

    eng.moh.4u Bobtail Member

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    Jan 13, 2017
    0
    I am using this gearbox in my truck
    [​IMG]

    And manual said below:

    [​IMG]

    Which gearbox oil should I use?
     
    eng.moh.4u, Apr 1, 2017
    eng.moh.4u, Apr 1, 2017
    #1
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  3. Apr 1, 2017 #2
    xsetra

    xsetra Road Train Member

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    xsetra, Apr 1, 2017
    xsetra, Apr 1, 2017
    #2
  4. Apr 1, 2017 #3
    eng.moh.4u

    eng.moh.4u Bobtail Member

    40
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    Jan 13, 2017
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    eng.moh.4u, Apr 1, 2017
    eng.moh.4u, Apr 1, 2017
    #3
  5. Apr 1, 2017 #4
    mslashbar

    mslashbar Medium Load Member

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    elizabeth,co
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    I've always used 50wt mineral oil in all my transmissions. Synthetic if available.
     
    mslashbar, Apr 1, 2017
    mslashbar, Apr 1, 2017
    #4
    Roger McG Thanks this.
  7. Apr 1, 2017 #5
    GrapeApe

    GrapeApe Road Train Member

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    PS-321 was an old spec (non-synthetic I believe) that was replaced by PS-386, which is a synthetic SAE 50. We use Castrol CD50, but any major brand has its equivalent.

    A synthetic SAE 50 should be fine for you. But if you can't get synthetic, I'd find out if they recommend a higher viscosity for your hotter weather in Saudi Arabia.
     
    GrapeApe, Apr 1, 2017
    GrapeApe, Apr 1, 2017
    #5
    SAR Thanks this.
  8. Apr 1, 2017 #6
    Heavyd

    Heavyd Road Train Member

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    Heavyd, Apr 1, 2017
    Heavyd, Apr 1, 2017
    #6
    Ezrider_48501 and SAR Thank this.
  9. Apr 2, 2017 #7
    Ezrider_48501

    Ezrider_48501 Road Train Member

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    sae 50w synthetic is what i have always used in all Eaton manual transmissions.
     
    Ezrider_48501, Apr 2, 2017
    Ezrider_48501, Apr 2, 2017
    #7
  10. Apr 4, 2017 #8
    Cowpie1

    Cowpie1 Road Train Member

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    Kellogg, IA
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    Same here. I have used 50w synthetic for a long, long time.
     
    Cowpie1, Apr 4, 2017
    Cowpie1, Apr 4, 2017
    #8
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