Is your engine fan running louder than you remember that it used to? Are you having intermittent A/C cooling problems? It could be your engine coolant level!

I know this sounds boneheadedly simple, but I bet it is an easy thing to overlook. I bought my Crossfire three months ago from a very reputable dealer. They gave me the spiel that they had completely gone over the car and checked all fluids and changed the oil with fresh new synthetic. I checked the oil, and it was fresh, so I foolishly assumed everything else was up to par as well.
After driving my car for a while, I noticed the engine fan often ran pretty loud, but not ever having driven a Crossfire before, I though it was normal since the temperature gauge didn't show a high reading. Then I began to encounter an occasional instance of the A/C not cooling properly.
To get to the point, it was simply a matter of low engine coolant - a GALLON to be exact. I feel stupid, but a the same time, my Crossfire is running beautifully, the engine fan is barely audible, even in the July Texas summer heat, and my A/C is delightfully chilly.