I have a 2007 Base XLR which currently has 18000 miles on it. When its idling, the temperature gauge indicates about an 1/8 or a 1/16 of an inch below the 220 degree mark . No error messages, no overheating. I changed and flushed the coolant system today and still getting essentially the same operating temperature and I was just wondering if this is the normal state of affairs for these vehicles. Anyone with any experiences or insights would love to hear from you. Thanks guys!