What is the liquid around my car battery?

What is your question?

I drive a 2012 Ford Fiesta SE. There is a little bit of liquid in and around my battery. It's not acid, but I'm wondering what else it could be. It looks oily, but I haven't touched it to see what color it is. I just had part of a 60,000 mile service done, oil change, all fluids topped off. I also had a clutch replaced in the transmission. There are no leaks, and it doesn't make any noise. It also drives just fine. There is no temperature gauge, so I don't know if it had anything to do with overheating.