i had changed the coolant in the radiator and flushed it out and when i put the new stuff in it leaked a bit from the maifold area. was going to change the gasket so bought the repair book, but after a few days the leak had stopped?? whats going on there. coolant level is fine and not overheating. reservoir tank is full enough too. could the new coolant have just moved some sludge away from the gasket or am i missing something. oh its not leaking water into the oil as well.