So I figured ou the coolant in my car has been Dexcool this whole time. I have been searching and found out that the Dexcool is made differently and whatnot and should not be in our engines. I want to replace it with that gold/yellow G-05 or something like that. My question is, when I flush the system, do I have to take the thermostat out and reinstall the thermostat housing to fully flush the system out, and then install a new thermostat to just be on the safe side? Is there a way to get all the old crap out easier?