When I go to start my car it starts kind of rough. Then after I have driven it and then let it sit for about 15 minutes when I go to start it again it does not want to start its like dragging to start. Also I have to add some coolant to the radiator everyday. I had the head gasket replaced about 8 months ago. When I pulled one of the spark plug covers out it had moisture and some oil on it. Can anyone help. Thanks