I keep losing all of my coolant every couple thousand miles and I can not figure out where it's going. After I drive sometimes I check around with a blacklight b/c I know coolant glows, but so far I have found no trace of it. It's getting me kind of worried; the only place I can think that it might be going is the motor! But it doesn't seem like it. I've lost a huge amount of coolant and my car still runs fine and I haven't really noticed any smoke or strange smells.. so what's the deal? I've checked around all over at the front of the car, on top and underneith, also with the bumper off. I see nothing. Any idea??