Thanks. No, there are no particles or anything in the coolant reservoir, but I just want rid of the green coolants.

About it going over 80*C - actually it has went over that to about where it is exactly horizontal. This was when I was in stop/go traffic. I read in the owners manual that it could safely go to 120*C, but that seems extreme. I am guessing mine was at about 85-90*C at its highest point.

On the highway or in smooth flowing traffic, it stays below 80*C, sometimes well below at highway speeds. Perhaps the thermostat needs replaced? Hopefully the proper coolant will keep it below 80*C. I want to change it soon, but seems like a messy task.

I still really did not get any information about it possibly clogging my heater core. I may just wait and simply do the complete drain/refill since the coolant in there is clean, but green.

Thanks