Last time I filled up my coolant I (being the dumba$$ that I am) forgot to tighten the radiator cap and it sent the stuff everywhere in the engine bay. Well when I filled the resivor (sorry can't spell) tank up I started the engine and it suck the tank dry, I had to fill the resivor up 4 times before the whole system was full again. As for fan running after car is shut off, my prelude does it all the time.