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It raises the boiling point of water as well as lowering the freezing point (Anti-freeze). Engine water temp can exceed 100C (212F) when working hard or running inefficiently which would cause all the rad water to boil off. Also, if you live in Canada like myself you know that it gets mighty cold eh! If there was no anti freeze in my radiator, it would turn into a block of ice in the winter when temps dip below 0C (32F)

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Q: Why is antifreeze added to a car's engine?
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Can you put antifreeze in cars from 2000 2004?

In countries which have a winter season ALL cars should have the correct amount of antifreeze added to their coolant fluids. If this is not added and the fluid freezes the expansion of the ice will crack the engine block.


What is the purpose of antifreeze in cars?

The purpose of antifreeze in cars is to keep the engine from freezing in cold weather.


Is there an antifreeze that will not harm bearings in antique cars?

No. Antifreeze should not mix with engine oil in any vehicle.


Why need antifreeze coolant in cars engine?

This is used to keep the motor from overheating and from freezing. Thus the name "antifreeze" and "coolant".


New engine in storage does it require antifreeze?

If it has never had any water/coolant added, then no it doesn't require antifreeze.


Can check engine light go on w low antifreeze?

Doubtful !... The antifreeze is added to the radiator - to keep the water above freezing point. There is no way of the engine knowing how much antifreeze is circulating.


How does antifreeze added to the water in a car and radiator protects the engine from damage?

. Solubility _____,


Why is antifreeze required to be added to an engines coolant?

Antifreeze helps the engine run cooler in the hot months and prevents the coolant from freezing in cold weather.


Do all modern cars have antifreeze?

Not all modern cars have Antifreeze. The vast majority of them do though.


Do cars have to have antifreeze in the water?

Yes and no, the function of antifreeze is to provide a much lower freezing point in winter and higher boiling point in the summer. Antifreeze also provides additives to prevent internal corrosion of engine components. Newer cars may overheat if you try and run water alone.


Do cars run with water?

No, cars use internal combustion engines which require a flammable fuel. There is a 50/50 mixture of water and antifreeze use as a coolant in the engine.


Was antifreeze invented before cars?

Antifreeze properties of some liquids were known about long before cars were invented.