I have been running multi grade oil, because up until very recently, it has been cooler. SkyKing was right, this was my first flight in HOT weather. On my trip to beaver island, it was 74F, and we got the hot weather going into Meigs, and then the next day. I'll try some risolone, and get the oil changed. I'm calling the mechs on Monday, get it into the shop.
I'll have them check compression, and plugs.
