houstondan - If you reread my post I merely asked if you were joking. I rarely use the word "stupid" except when I am driving on Korean roads; but that is another story. I am not a mechanic nor am I a body repair technician so the concept of using dry ice seemed fantastically strange. I am thrilled to learn that dry ice has been used for years and I hope to learn more information just like this in the future. Keep it coming kiddoe!