Antifreeze isn't just to prevent your radiator from freezing. It can also raise the boiling point of liquid to prevent it from bubbling over in hot weather.

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First, get the right radiator fluid, meaning you have to find the right antifreeze and mix it with water in the right ratio - usually 50/50 - before adding it. Alternatively, buy the correct ...

Drain the Coolant To get started on this vital maintenance, do a thorough job of draining the coolant. Start by checking the specifications in your car’s manual to see how much coolant goes in ...

To keep the water in the cooling system from boiling or freezing, the water is mixed with coolant or antifreeze. Car Smarts: Most coolants contain about 95 percent ethylene glycol, a chemical that ...

Antifreeze is concentrated is commonly made up of ethylene glycol and silica which, when combined with a predetermined mix of regular H2O, makes coolant and keeps your car’s engine cool and warm ...

For example, Hyundai says the coolant in the engine (what many refer to as “antifreeze”) in most of its models should be replaced after the first 60,000 miles, then every 30,000 miles after that.

Thus, antifreeze is an element of coolant, with it typically comprising around 50% of the mixture . Coolant meant for lower-temperature climates tends to include higher percentages of antifreeze.

As the name suggests, the primary function of antifreeze is to prevent your car's coolant from freezing in low temperatures (with coolant being a combination of water and antifreeze).

Several components in your car hold coolant, often called antifreeze, and any of them can get a hole or develop a leak. If your car loses too much coolant, its engine could overheat.

Coolant is typically a 50/50 mix of water and ethylene glycol, although that ratio can vary. Compared to pure water, coolant has a higher boiling point as well as a lower freezing threshold.