The cooling system is one of the most important parts on cars using internal combustion engines. The mission of this system is to maintain engine temperature at an appropriate level, helping the car operate stably and limiting the risk of serious damage.
Car owners should check the coolant water at least once a year. For vehicles that regularly travel long distances, operate in hot sunny conditions, or are old, checks can be carried out more frequently to detect abnormalities early.
Why is cooling water important?
During operation, the engine continuously burns fuel to generate energy. This process generates a very large amount of heat. If heat is not released in time, the engine may overheat, leading to a series of damages such as grille burning, piston failure, heat valve jams or even engine overhaul.
Coolant water is a mixture of water and antifreeze solution. This liquid is pumped circulating around the engine to absorb excess heat, then transfer heat to the radiator before continuing to return to the engine.
When the cooling water level decreases or the solution quality declines, the system's heat dissipation capacity will be affected. This is a common cause of engine overheating, especially on hot sunny days.
In addition to its cooling function, this solution also helps limit rust and corrosion inside the engine and pipeline system. Compared to conventional water, coolant water has a lower freezing point and a higher boiling point, helping the system operate efficiently in many different weather conditions.
How to self-check cooling water
First, it is necessary to ensure that the engine has completely cooled down. It is best to check in the morning before starting the car or after the car has stopped overnight. Opening the tank cap when the engine is still hot can cause burns because the pressure in the system is still high.
Then, determine the location of the cooling water tank according to the vehicle's instructions. On the body, there are normal lines marking the minimum and maximum levels. If the water level is lower than the prescribed level, the vehicle owner should supplement the correct type of cooling water as recommended by the manufacturer.
For more careful people, specialized testing tools can be used to assess the freezing and boiling resistance of the coolant solution. If the solution is found to be dirty, discolored, or no longer meeting standards, it should be completely replaced.
Car owners should not ignore checking the coolant even if the car is still operating normally. Just a few minutes of periodic inspection can help detect leaks or reduced liquid quality early, thereby avoiding costly engine damage in the future.
