10w30 vs 15w40 son

Discussion in 'Ask An Owner Operator' started by Midwest Trucker, Apr 10, 2022.

Which oil do you run?

  1. I like 10w30

    6 vote(s)
    10.9%
  2. I like 15w40

    41 vote(s)
    74.5%
  3. What is this oil thing you speak of?

    8 vote(s)
    14.5%
  1. TallJoe

    TallJoe Road Train Member

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    Is there any way to assess or measure the oil flow?
     
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  3. scoobertdoo

    scoobertdoo Road Train Member

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    I run 5-40 mobile 1 full synthetic.

    I've always run full synthetic.

    I change the oil less, and with a bypass filter from the factory, you can go a #### long time between changes.
     
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  4. Goodysnap

    Goodysnap Road Train Member

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    Jul 12, 2017
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    10w30 Mobil in the bulk tank goes in everything that is common rail injection.

    Everything older gets 15w40 out of a drum. All CAT, N14 and anything mechanical. Which is not very often anymore.
     
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  5. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    Cat dealer we only had 0W-40 on the reel. You wanted anything else it came out of a bucket.
     
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