Originally Posted by McD44

The was a very light coating of oil when I pulled it. The button, piston and other internals also had a light coating of oil. It was clear and hard to see at first and I though the engine was dry. Way different than the Byron's 30/9 that I was running that left a bunch of oil all over everything. The top of the piston had some caramel colored residue on it that wiped off easily with a isopropyl dampened rag.

That plug has 1:15 or so on it, one race day.