Thank You For The Input,
The reason that i was hesitant to drain the oil is, I just put it in the car. I bought the car after knowing that it had been sitting for a couple of years outdoors. I had changed all of the fluids prior to trying to start it. I just wanted to make sure it ran before I got into fixing the radiator. After servicing/cleaning the entire fuel system, adjusting the valves, replacing the plugs, etc., etc, etc....... I have pretty much "gone thru" the car prior to getting into the cooling system. Considering all that i've done on this car, "pissing away" new oil is the least of my concerns, but I just wanted to check. Thank You.

Now another question. The water pump seems to be in perfect condition. I know that a lot of "new parts" are crap. Do I replace the perfectly working water pump, or take a chance on a new (maybe not as good) one?

Pat