why is there white creamy foam under my oil cap
2 Answers
white creamy foam under the oil cap is condensation in the oil that has burned off during the duration of the drive. since this moisture cannot be released it collects on the oil cap. It should be alright as long as there is not overly to much
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it's possible it's just condensation..... it could also be a blown head gasket letting coolant into the crankcase. Watch the level in your coolant overflow tank and see if it drops. If it's simply condensation try replacing the seal on your oil cap, and making sure any other grommets or breathers are sealed also
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