Posts Tagged: Coolant versus water — which cools your engine better?

Water versus coolant in your engine — Which does a better job?

There’s more to the water versus coolant debate than just heat transfer It’s true that water is better at transferring heat than coolant. In fact, at engine operating temperatures around 200°F, plain water wins the water versus coolant competition by removing 17% more heat. But there a lot more to the decision than just heat transfer, and the biggest one is corrosion. Water corrodes; it’s just that simple Cooling systems contain many different metals; steel, aluminum, manganese, and copper. Any time you combine dissimilar metals with an electrolyte solution, you … Read More