Well living out here in California we have been dealing with a very, very HOT summer. Since my car is a daily driver, I use my AC alot. I have noticed after long drives with the AC on that when I get out of the car I can hear water evaporating on hot metal. Well I climbed under the car to take a look and it appears to be condensation dripping from the upper AC lines down to the bottom of the engine. It is discoloring some of the pieces down there. Has anybody else had this - is it normal?