I have another question for the experts. Today I was going to change my radiator fluid on my Massey 245. When I loosened the bottom radiator hose green antifreeze came out followed by red (rust colored) liquid. I tightened the hose and filled it with distilled water. After letting it run for about 30 minutes I emptied it again. Dark rust colored fluid came out again.
I then proceeded to take my garden hose and flush it out about 20 times. It got to the point when I filled it with water, it would drain clear (I think from the radiator) but when I could hear the thermostat release the water would turn rust colored again (I think from the engine block).
It seems to be less dark now, but it is still brown once the thermostat releases. So my question is, should I just go ahead and put in the 50/50 antifreeze and leave it, or should I continue to flush or maybe even use a chemical flush?