Just wondering ,as a new owner,how long my 2004 rt can sit in bumper to bumper traffic on a warm day (or any day ) before i need to be concerned about overheating the engine? And what should i be on the lookout for ,other than the engine heat indicator rising to let me know i should pull over and shut it down?I've not been stuck in traffic yet and the engine monitor has not gone above five bars.Thanks in advance.