Oil on spark plugs
Then, like Jdblack1 said, it's probably valve stem seals.
Could be rings, and a dry/wet compression test would verify it. But I'd bet it's the valve stem seals.
PCV would probably affect ALL the cylinders, not just one.
Could be rings, and a dry/wet compression test would verify it. But I'd bet it's the valve stem seals.
PCV would probably affect ALL the cylinders, not just one.
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