An answer. I have a 2006 base 2.4 with 107,000 miles. Second summer coming up for me. Last summer coolant temp was running 210+. After some research came to the conclusion of while its on the high side of normal it should be no problem. Doing a little spring detailing of my vehicles. Cleaning the radiator with coil safe non acid coil cleaner is one thing I do. Mix rate 1:1. Its very important on my stupid Dodge pickup to keep the radiator clean because of possible overheating issues. The dodge gets a couple cleanings per year. I cleaned the radiator on the Solstice also. Coolant temp now +-195. A significant drop in temp. It didnt look that plugged but apparently it was. Clean your radiators boys and girls.