Read and follow the manufacturer's instructions printed on the produce you want to use, carefully.
Water alone is not used as coolant for automobiles.
How to prepare coolant for machineries and the formula for coolant
it is used as a coolant
A 50/50 mixture of anti-freeze and distilled water.
When discussing the use of freon (or chlorofluorocarbon as it is known) it usually refers to refrigeration and air conditioning. When talking about cars, freon gas is used in the Air conditioning unit. It it sometimes used by racing cars in the radiator in leu of regular coolant (or anti-freeze) but this is not a common practice. On regular cars, coolant is an oil based product placed in the cars radiator and reservoir diluted with water. It's function is to allow the radiator fluid (coolant and water), to be heated and cooled beyond the natural point of water to aid in the cooling of the cars engine.
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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.
A 50/50 mix of coolant and water generally gives you protection down to 30 degrees below 0 F.
Valvoline MaxLife coolant.
Very few cars have a low coolant light but will have a overheating light. You can be sure it will look like water or a thermometer. Why not just raise the hood and check the coolant level.
First of all you shouldn't be using water, you should be using engine coolant. And to answer your question, your engine will over heat and you will not be able to drive. You can do damage to your cars radiator running with no coolant.
Engine coolant contains certain chemical properties that water does not. Coolant is used in cars, busses, trucks, and other vehicles, and it is never recommended to use water unless it is only a short-term fix until you can get more coolant. The main difference is freezing point. If you use water as coolant in the winter, it will likely freeze and crack your engine block. In the heat, water boils much faster and produces more heat.