What is the reason for the constant loss of car coolant?

[SophiaAnn]

Car engine coolant will naturally decrease over time. During summer, when heat dissipation is less efficient due to higher internal temperatures, there will be some evaporation loss. It's necessary to replenish it promptly to ensure proper engine cooling. If the loss is minimal, it's considered normal. However, if there's significant loss, it's advisable to check for potential coolant leaks. Coolant, commonly known as antifreeze, is a crucial component for car engines. It provides cooling energy for the engine and also serves as a cooling medium for the car's air conditioning system and essential components like the oil cooler. Generally, coolant should be replaced every two years or approximately 40,000 kilometers.