White Liquid Residue on Oil Filler Cap and Opening? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 5 (permalink) Old 02-26-2014, 12:40 PM Thread Starter
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White Liquid Residue on Oil Filler Cap and Opening?

Today I was changing my oil and noticed a liquid white residue in the oil filler opening and the inside of the cap. What could this be? The service I've had done while this oil was in the vehicle was an exhaust manifold replacement and a thermostat replacement. The oil dipstick DOES NOT have the white liquid on it. I live in upstate NY where the temperatures range from 0-45 degrees F for this time of year. I'll try to respond to your guys questions ASAP.



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post #2 of 5 (permalink) Old 02-26-2014, 12:49 PM
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As far as I know that is condensation. If it isn't on your dipstick that's probably all it is. antifreeze+oil mix makes the same color oil but it would be on your dipstick. I'm sure you're fine. Others will chime in here to let us know for sure

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post #3 of 5 (permalink) Old 02-26-2014, 03:14 PM
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Yup! condensation, short trips will do this all the time.

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post #4 of 5 (permalink) Old 02-26-2014, 05:05 PM
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mines done that for years, i dont know how much short trips plays into it tho cause my car never sees one and still does it

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post #5 of 5 (permalink) Old 02-26-2014, 05:33 PM Thread Starter
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Thank god. I thought I was going to have a problem before my road trip.



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