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#1
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What Causes White Vapor in Cold Temperatures?
Well, Just what was in the subject. I've noticed white smoke or vapor coming out of my tailpipe. I only happens when it's cold (about 55F). I just had the stem seals replaced. Hope it's not related! Whats goin on?
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#2
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Water vapour
The combustion process produces water. The white stuff is partially condensed water vapour. When the exhaust system is hot, the water vapour stays as a colourless gas.
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Cheers, Neil |
#3
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I thought it was
When the exhaust cools water vapor (humidity?) condenses and as it heats up it boils off.
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#4
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Ever seen vapour trails from a jet aircraft at high altitude? Exactly the same thing, only the condensation cloud remains due to the low temperature of the air up there.
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Mick J '08 Chrysler 300CRD (MB OM 642 engine) '95 E220 estate '89 230TE (R.I.P.) |
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