Well here is my opinion and it is just that my opinion you dont have to agree with me this is just from my personal experience. I have worked on many new vehicles and as far as I am concerned the red (dexcool) antifreeze has far more problems as far as clogging up the cooling systems and eating up seals. I have changed quite a few water pumps that honestly were not old enough to need to be changed yet. It builds a corossion up in the system that I dont like at all. As far as switching from one to the other you should flush the system to get rid of all of the particular style you have be it the green antifreeze or the red before switching to the other. Either way you do it you should keep in mind Antifreeze just like anyother fluid should be changed on a regular basis which I believe is reccomended every two years (at least for the green style it seems like the red says 10 years 100K miles someone correct me if i'm wron) If you do that you wont have any problems with the green style antifreeze. I should point out again this is my opinion take it or leave it you won't hurt my feelings. Justin
