Whats up all. Here's my problem. My car is fairly new. 2001 with about 23k on the clock. Anyways for the past few weeks I've been noticing something with my engine temperature guage(e.t.g) in my car. If I'm in stop and go traffic, or if I leave the car in idle for more than a few minutes, or at a long traffic light the e.t.g goes all the way to the right. I did the little diagnosic mode thingy and my temp goes all the way up to 255~256. After I get going the e.t.g goes back down to the middle. It can't be normal for my engine to run so hot in traffic and at idle. I'm thinking I might need some new coolant, or something simple like that. Anyone got any advice?