Originally Posted by Evolv0
Yeah I was just going to say, they could have done a messy job when changing your oil last and spilt some. if it was on the other side of the motor I was going to say check the PCV hoses.
Hopefully just sloppy tech oil.
If you sniff it, does it smell like oil, or possibly gas?
If it has never been there before, not likely it would be the crud left from evaporating fuel from a defective injector.
Hose it off with a bit of cleaning foam then rinse and see if it comes back.
If it doesn't bounce a can of oil off the tech's hairdo.