I think you’re overthinking this. Clean the oil and torque the spark plug properly, then check up again in a couple weeks. If theres still oil in the spark plug hole it’s the valve cover gasket. It’s a very common issue and a quick and easy job.
It’s got nothing to do with blowby or oil consumption, just some oil weeping.
I doubt the spark plug was loose and letting oil through
It’s got nothing to do with blowby or oil consumption, just some oil weeping.
I doubt the spark plug was loose and letting oil through