To fill you guys in a bit, when I replaced the plugs the other day, I had the 3 on the driver's side bank covered in oil. Which was alarming to me.

OK fast forward. I pulled the plugs on drivers side again.... que Carlos Mencia.
http://www.comedycentral.com/videos/index.jhtml?title=dee-dee-dee-song&videoId=72779

So, two of the driver's side plugs were loose. Where I was able to unscrew them with just the extension and my fingers.

<img src="/forums/images/graemlins/shiner.gif" alt="" />

That would cause the trouble, huh?