How Glycol Increases Boiling Points

Introduction: In order to keep your car’s radiator cool during cold winter months and protect it from extreme temperatures, many people add glycol to their water-based coolant. Glycol can reduce the freezing point of the coolant by several degrees Celsius depending on the concentration level. It also increases boiling points which helps with heat transfer from the engine block surface area into the cooling fluid before it reaches a boiling point. Let’s explore how this works in more detail.