Appreciate it! I figured, but wanted to make sure it wasn’t some sort of leak or something.Howdy and welcome. Only cosmetic. You can try cleaning the entire cover. Not sure what cleaner is best. I would try soap and water first. Hot water might pull the oil stain out (if it is an oil stain).
I was excited.I would ask myself how the oil stain got there in the first place.
Simple green. It'll take it out.I’ve used Simple Green Max in the engine compartment on past cars with good results.