im not sure whats wrong with it? there is water in the oil. its bad and i just changed it two days ago. it will leak water and overheat when the theremostat is in. i had bought a new thermostat and made sure it works, but if i take it out it wont leak or over heat. it just mixes my oil with water. it dont smoke either. its wierd i figured if the head gasket or head was messed up it would smoke or run like crap. anyone have any ideas.