How hot of a day was it? Were you driving hard, or just cruising? Did the temps stay constant at 240 or drop? If it was just for a short period of time I wouldnt worry about it, but I've only seen over 230 one time, most of the time I'm around 200-220 depending. If its a constant deal you may want to consider a cooler. Also, I'd check your oil level, see if you are low. Hope this helps!
