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An antifreeze mixture is used to achieve freezing-point depression for cold environments. Common antifreezes also increase the boiling point of the liquid, allowing higher coolant temperature. [1] However, all common antifreeze additives also have lower heat capacities than water, and do reduce water's ability to act as a coolant when added to ...
Antifreeze itself is usually ethylene glycol or propylene glycol (with a small amount of corrosion inhibitor). A typical automotive cooling system comprises: a series of galleries cast into the engine block and cylinder head, surrounding the combustion chambers with circulating liquid to carry away heat;
Older cars often have non-pressurized cooling systems, and the water-based coolant can boil and overflow. Traditionally, this issue has been solved by topping off the radiator with water. This dilutes the coolant and the water can contain minerals harmful to the vehicle. Classic car owners have adopted waterless coolant to solve this problem.
Device to measure the temperature to which the coolant protects the car from freezing. Water is the most common coolant. Its high heat capacity and low cost make it a suitable heat-transfer medium. It is usually used with additives, like corrosion inhibitors and antifreeze.
Methanol is safer for the environment than gasoline, is an anti-freeze agent, prevents dirt and grime buildup within the engine, has a higher ignition temperature and can withstand compression equivalent to that of super high-octane gasoline. [1] It can readily be used in most modern engines. [2]
At the time, warming the car in the winter made sense since it could take several minutes for the right air-fuel mix to reach the engine, without which the vehicle was at risk of stalling or ...