My 2009 GXP thermostat sometimes sticks if I let it sit too long. It will heat up into the 220's then "pop" and I'll never see temps over 205 after that. Doesn't happen often, usually the first ride in the spring.I came back from a 45 minute drive and went into the local car wash. As I checked the DIC I noticed the engine temp at 214... I have never seen it more than 200 on a hot summer day. It quickly dropped to 192 in a few minutes after the wash... normally it sits steady at 194 or so. Should I have it checked???