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Oil too thick??

This is a discussion on Oil too thick?? within the LT1 forums, part of the Vehicle Specific category; I live in Az and to help with a little oil leak and a slight rocker rattle, I bought castrol ...

  1. #1
    Sinister Z
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    Oil too thick??

    I live in Az and to help with a little oil leak and a slight rocker rattle, I bought castrol High Mileage 20w50 oil. I normally use Mobil 1 5w30 but heard in this hot climate I can use thicker oil and will be ok. Any thoughts or recommedations please? Thanks.

  2. #2
    Senior Member 5.0THIS's Avatar
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    95 Z28

    If you've been running synthetic, stay with synthetic. Why would you want to be using a thicker oil anyway? As long as your oil pressure is ok, then use the lightest oil you can. If your oil pressure is so low that you need to start using a thicker oil, then you need to be thinking about a rebuild anyway.

  3. #3
    Senior Member MadSeason's Avatar
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    1994 POS

    In a hot climate stick with 10W30, I also agree with 5.0THIS's post

  4. #4
    1BADLT1
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    10-W40 at the highest but there isnt any reason to change unless you have hella miles on your car.

  5. #5
    Sinister Z
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    Car just turned over 103k. It doesnt smoke or burn a drop of oil though. Its a slight leak I havent been able to track down and fix due to have only one car. I went with Castrol High Mileage 10w40.

  6. #6
    Senior Member 5.0THIS's Avatar
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    95 Z28

    So you went from synthetic to non-synthetic?

  7. #7
    Sinister Z
    Guest
    Yeah. I went through one cycle with the Mobil 1 in it.

  8. #8
    1BADLT1
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    Quote Originally Posted by Sinister Z
    Yeah. I went through one cycle with the Mobil 1 in it.
    Good thinking.

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