Hi...I know this is a common issue. My question is that I bought this car from a used dealership at the beginning of March 2020. About a week or so after purchase it started to knock during start up. It's nowhere near as bad as some of the things I have seen on this forum but it is definitely starting. I don't know if it is a headgasket or if it is just sucking up oil from the intake on startup. Is there something I can do about this or am I just screwed now?