Business cars, like most vehicles, use water cooling systems primarily for their efficiency and reliability in managing engine heat. Here are some specific reasons why water cooling is commonly used in business cars:

• Heat Dissipation: Water has a high heat capacity, meaning it can absorb a significant amount of heat without a large increase in temperature. This makes it an efficient medium for transferring heat away from the engine. Water circulates through the engine and absorbs heat generated by the combustion process, carrying it to the radiator where it is dissipated.
• Thermal Stability: Water has good thermal stability, which means it can maintain its properties even at high temperatures. This makes it suitable for cooling engines that generate substantial heat during operation. Water’s high boiling point allows it to remain in liquid form even under extreme engine temperatures.
• System Control: Water cooling systems provide better control over the engine’s temperature. The cooling system incorporates components like the thermostat, water pump, and radiator that work together to regulate the flow and temperature of coolant, ensuring the engine stays within the desired temperature range.

It’s important to note that while water is commonly used in cooling systems, it is mixed with coolant additives (typically ethylene glycol or propylene glycol) to improve its properties, such as raising its boiling point and lowering its freezing point. This coolant mixture provides enhanced protection against freezing, corrosion, and cavitation in the engine.