Because your gaskets over the plug wells were leaking...and when you pulled the plugs, oil got on the threads. Anyway, hope that's why. When I did my vcg, I had a coating of oil in the bottom of 6 and just a tad in 5. Not sure you looked, but wouldn't surprise me if I'm right and that's all it was. Hope so.
Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840
A recent set