Yes I would like to know why oil is on my spark plug

Asked by Korry Jun 23, 2018 at 04:06 AM about the Saturn S-Series

Question type: General

2 Answers
24,955

Mark answered 5 years ago

The only way for oil to enter into the combustion chamber is to blow by the rings. How many miles does the vehicle have and has a compression test been done on the cylinders? Is the vehicle blowing bluish/grey smoke out of the exhaust. Sure sign of oil getting past the rings and burning.

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