I'm familiar with the adage, a little bit of oil makes a big mess. I noticed a spot under my recently bought 2016 PM. It is crankcase oil and is about 18" in diameter. I know the dealer did and oil change before I bought it. I have less then 1000 miles on it since then. I hope it is either the drain plug or oil filter. Are there common leak points on the V6 gasser that I should look for?