I remove the 50/50 water antifreeze from all of my cars and run pure antifreeze. It will destroy cooling system parts if not changed?
Antifreeze does not conduct nor store as much heat as water. Many, if not most cars, will overheat in the summer if you use 100% antifreeze. Too little and it will conduct heat well but the water boils, too much and it will not conduct heat well but at least it doesn't boil over.