Differential oil for semi trucks?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Twinturboi6, Apr 27, 2009.

  1. Twinturboi6

    Twinturboi6 Bobtail Member

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    Hello, i have a 2002 Freightliner Columbia and was wondering what kind of differential oil i would need so i can change it this weekend by myself.
     
  2. Les2

    Les2 Road Train Member

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    It might be 50w synthetic but call freightliner to make sure. They'll probably need your VIN number.
     
  3. cat from the valley

    cat from the valley Medium Load Member

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  4. ironeagle2006

    ironeagle2006 Road Train Member

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    Trans would be 50W rears is most likely 90W gear oil Synththic anymore for mileage.
     
  5. Rock hauler

    Rock hauler Light Load Member

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    My Kenworth has 75- 90W synthetic in the Diff, and 50 in the trans.
     
    Ezrider_48501 Thanks this.
  6. droy

    droy Heavy Load Member

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    Ditto that
     
  7. pullingtrucker

    pullingtrucker Road Train Member

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    If ya can hold off I would get online at Scheaffer's oil and find a local sales rep. Their oil is the bomb!!! I swapped out all 3 boxes 2 weeks ago and love the change. The tranny shifts smoother and all 3 run about 20 degrees cooler. They are a little bit more expensive, but well worth it. I don't have any hard numbers yet, but it is looking like I gained about .2 mpg with the swap. I can repost in a few weeks with hard numbers if ya'all want.

    As for the oil itself...50w for the tranny and you can run 75w90 in the rears (all synthetics of course). If ya got the time I highly suggest that you drain the drive axle hubs to. You just got to pull of the drive tires and there is a allen plug in the hub to drain and refill them. Its just cheap insurance...
     
  8. 112racing

    112racing Road Train Member

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    i use sheaffers 75-140 synthetic in trans (yup) and rears
     
    Last edited: Apr 29, 2009
  9. 1999blue

    1999blue Light Load Member

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    DID I GET RAPED? 1 Gal syn 50 W, ""$65.00. Not including tax. Is it not time for everyone to demand "stopping these greedy bloated oil companies" ?
     
  10. black_dog106

    black_dog106 Road Train Member

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    Yup, that was just about enough...:biggrin_25512: