10367 posts, joined 04/24/2003
Just windshield washer fluid. It won't hurt anything if you run out, other than the fact that you won't be able to clean your windshield. Just don't hold down the "squirter" button if the reservoir is empty - you can burn up the squirter motor if there's no fluid going through.
When you get to CS, look at the reservoir and see where it is leaking. May be as simple as a loose hose underneath, or it may be a crack in the plastic, itself.
[This message has been edited by Emeril (edited 12/20/2012 7:57a).]