I was driving slightly aggresively idled down a for a 1 minute the shut her down started up about 10-15 minutes later and temp needle went above the middle mark and as i drove of went back down to half way(normal) was the hotest day of year i wanna be cautious because the car has never been really abused, thus non of the systems changed other the timming belt and water pump. So i figured spen some money into caution....