H It was always reading high when sitting in traffic. If I drove for a while it would drop to 180. It was sitting in traffic that seemed not so good. I thought the griffin radiator and twin fans would idle at the 180. So far, not so much. Fans appear to be kicking on at the guage reading about 200-210? I have only had the car idle so far, but the fans seem to drop the temp down to about 190 while idling.