I have to say, I took the Pinto for a drive today after being away from it for a while due to the bad heater, fun,fun,fun. A guy in a new Mustang was ogling my ugly 2 tone blue/primer Pinto. I have the system full of water, I am going to drain it out when it cools and put Anti_freeze back in. The anti/freeze water has turned rusty looking each time I put new Antifreeze in. 3 times now.