I’m sure there might be a few chirps over this but I’ll put it out there for those who might be prone to being a bit OCD! I have always let my oil drain for several hours to get the most out that I can but realize there is still oil in the pan. So I roll a single paper towel into a tube and put in through the drain plug hole into the pan. It wicks about 6 oz of oil on my Shelby after sitting for a while.Attachment 18541Attachment 18542