My mechanic told me today that when he pulled my spark plugs that the number 1 top plug was moist and the bottom number 1 plug was frankly oily. My mechanic suggested we "watch" this but not take significant action now. Anyone have any thoughts as to what I might expect as we watch and wait for some undetermined period?
What steps if any would you recommend at this point?
Engine is a factory new Continental IO-520-D with 150 hours. Plugs are Champion massive electrode.