Is it normal to get clear white smoke coming out exhaust for 20 seconds on a cold start after the vehicle been standing for a good 6 weeks?

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  • Anonymous
    5 months ago

    Yes. It's water vapour. Quite normal.

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  • Anonymous
    5 months ago

    I wouldn't put much stock in anything that came out of the exhaust after six weeks. White means water vapor. Always normal, except when it is profuse dense white smoke--that's a head leak. If you are not strafing the road it is probably normal water vapor.

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  • Ron
    Lv 7
    5 months ago

    It's not smoke

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  • Joe
    Lv 7
    5 months ago

    I would not be too surprised if some moisture had built up in the exhaust system, and came out as a mist.

    If it's only the one time, don't worry about it.

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  • 5 months ago

    NO. but is IS normal for 'clear white STEAM' as condensation off the exhaust pipe heats up.

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    • STEVEN F
      Lv 7
      5 months agoReport

      STEAM is ALWAYS fine. A bad head gasket would produce actual smoke, but NOT immediately on starting.

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