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How should I read the oil gauge?

Discussion in '2.5 Gen Tundras (2014-2021)' started by zogman, Jan 17, 2021.

  1. Feb 26, 2021 at 10:43 PM
    #31
    JMB711

    JMB711 New Member

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    Running boards. Shaved vehicle emblems. TruXcedo low profile tonneau cover. LED interior lights along with cargo bay and reverse lights.
    I think someones yanking our chains?
     
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  2. Oct 12, 2022 at 5:43 PM
    #32
    lcovel

    lcovel New Member

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  3. Oct 12, 2022 at 5:50 PM
    #33
    lcovel

    lcovel New Member

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    It's a valid question. As others have stated, the indicator on the dash is for oil pressure. However, their have been vehicles which this gauge served dual purpose. An example is an older model Peugeot, 84 or 86 year. With the engine off and the key in the on position it would indicate the oil level. With the engine on it would indicate the oil pressure. It was a good setup. Seems like more automakers would use that configuration.
     
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  4. Oct 12, 2022 at 6:17 PM
    #34
    PA452

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    From what I've read, the issue with too much oil is when the crank shaft starts beating the oil in the sump. It can whip it into a froth full of air bubbles leading to lubrication issues.
     
  5. Oct 14, 2022 at 8:51 AM
    #35
    TTund16

    TTund16 New Member

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    Possible foaming?

    Can an extra quart do that? Depends on the sump size, engine design, etc.
    I don't have any data with regard to Tundra. Some engines will be ok, some won't and add driving conditions & habits (RPM) to it ...

    You would think 1/2 qt over or within +/- %5 should be fine. Full qt pushes that to about %12.5 over plus whatever extra left-over oil already in there. You can not drain it all when you change oil.

    It could be ok, but I sleep better if I drain the extra oil. :bucket:
     
    Last edited: Oct 14, 2022

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