Ok, so I have a car a 1999 Honda Civic DX Auto. It will run for days, weeks with no problem at all. Not a single overheat but when it's a cold morning. The gauge will not go anywhere near half way. It stays on C all through the cold day. Normal days its at half. After hitting the hwy at average 65mph for about 35min and letting off the gas. It will raise all the way to the H and start smoking. So i have to sit on the side for about 10min and put in more coolant. Its done that both times i did the long hwy drive. Please help!
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