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Why would there be oil on the spark plugs of a Honda Civic D15B2?
Wiki User
∙ 17y ago
Could be rings are bad and allowing oil to be pumped up the cylinder walls to spark plugs Could be valve seals/guides allowing oil to comes down from valves into cylinder chamber Do a dry compression test Then a wet compression test (squirt oil int cylinder) and compare readings--if higher on a wet test then rings are probably bad Also if the oil is on the outside of the spark plug and not on the electrode, you have a leaking valve cover.
Wiki User
∙ 17y ago
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