My threads are ALWAYS oily, all the way to the seat. 2 days ago, I indexed the plug then pulled it out. The clean side is directly facing the exhaust valve and the dirty/oil side faces the intake valve. I think I may have a guide or seal problem too. As soon as I get some time, i'm going to pull the VC and ck the seals and stem movement.
Might not hurt to go pull the plug and see how its doing, been 7 or 8 days now on this plug.