General Question

melanie81's avatar

What is that stinky exhuast that comes out the back of my car when it's been sitting cold for awhile?

Asked by melanie81 (792points) January 23rd, 2009

It only happens when it’s been sitting for at least a week, and if the weather has been cold. Just smells like really strong exhaust really. Is everything OK? I mean, it’s a practically brand new (2008) Civic.

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3 Answers

AstroChuck's avatar

A car fart, of course.

tyrantxseries's avatar

when really cold more than usual unburnt gas mixes with the regular exhaust (all my cars have done this too until they warm up)

westy81585's avatar

It’s normal in cold weather, like tyrant said, your gas just isn’t all burning. As long as it goes away after the car warms up you are fine. If it continues after it warms up or when the weather gets warm, then you might have a problem. (if it really bugs you you can use higher octane gas, it has less impurities and the gas burns easier)

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