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Creamy yellow gunk in oil filler tube

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I just read a letter in GT magazine where the writer claims to have creamy yellow gunk inside the oil feed pipe adjacent to the oil filler cap and now I'm quite concerned because I've noticed the same thing on my 996. The editor entitled the letter " Heading for Problems", and suggested that it sounded suspiciously like a head gasket problem.

Anybody know what this creamy yellow stuff is? Is it really a problem? What's the head gasket and why would it be the culprit? :(


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It depends on how you drive your car...

If you are not getting the car to full operating temperature then it can be caused by normal condensation. The engine is not hot enough to "cook off" the moisture. If your car is only driven for short trips where you don't get it heated up then I would recommend changing the oil more often to get rid of the moisture.

If you had a head gasket problem you would see the coolant level go down, water in the oil and likely a lot of smoke out the exhaust.

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