Can I directly add coolant if it's low?

[HarperRose]

Coolant can be directly added if it's low. The normal operation of a car is inseparable from the presence of coolant. Coolant prevents the freezing and expansion of the liquid in cold seasons, which could otherwise crack the radiator and damage the engine cylinder block, thus better protecting certain parts of the car. The full name of coolant should be antifreeze coolant, meaning it has antifreeze properties. It is not only used in winter but should be used all year round. In regular car maintenance, the engine coolant should be replaced every year. Coolant consists of three parts: water, antifreeze, and additives. Depending on the antifreeze component, it can be classified into alcohol-based, glycerol-based, ethylene glycol-based, and other types of coolant.