Did I overheat my engine?
Yesterday I was on the interstate and stuck in traffic. I normally run 180-190 cruising on the highway but once i got stuck in traffic my radiator couldnt keep up. I ended up hitting 258 when I pulled over on the side of the road and it hit about 262 degrees. When I parked it was boiling over and spraying out my overflow tube.
Did I overheat my engine or was it just doing what it was suppose to to relive the pressure? The engine is a 454 with a 12-16lb radiator cap on it.