[exigegus]

I will say there are certain cars [Fords?]where the spark plugs are known to seize for whatever reason, part of it being the very long service times available in modern plugs

I think that most people who have owned Lotus' for any time would be pretty amused at the thought of anything at the bottom of the spark plug well being clean and dry.

I have never stripped a spark plug, no matter how greasy