So I was driving home last night and the engine over heating indicator light popped on. It went away almost immediately after I stopped putting the gas on..... Popped the engine open and could see I was leaking Antifreeze. From what looked like the reservoir, my dealership doesn't have slots available for another week or so. Can I use water as a sub in the mean time? I can't really afford to be dumbing new anti freeze in every few days until the dealer can deal with the issue.