[dangerous]

Thanks - I am going to replace the pump today (kinda noisy and its a lifetime warranty) and pull the radiator to have it rodded. I can better backflush the radiator and maybe the engine?

It just runs too good to be a head gasket - although I have to admit I am losing more fluid than the intake line is responsible for.

Also - the idea of air in the system has validity too... I filled the system at 5am when it was cold outside. I drove to work and it ran 230+. After work, I drove to get the new H20 pump and I sat in 75 degree weather and traffic and it ran cool !!!!!!!

So the black water doesn't bother you all?