[QUOTE=1gary;379888]Under the last touched theory,it could have air trapped in the system.If it was a bad head gasket,you can take off the rad cap and wait for the thermostat to open.If there is a bad head gasket once the thermostat opened,you would see a stream of bubbles.Is there any white smoke coming out of the tail pipe??.That is after it warms up.

No smoke, milky oil, nothing??