Can I add water to the car coolant?

For those who own cars, supplementing the coolant can be said to be commonplace. It not only effectively prevents the "boiling" phenomenon (cooling effect) of the engine when the engine is running at high speed, but also has the effect of preventing corrosion and scale. If it is an antifreeze type coolant, it can also avoid freezing when parking in a cold area. But some novice Xiaobai will ask whether it is possible to add water to the car coolant. Let's answer it in detail below.

When we need to replenish the coolant tank (below the MIN mark), if there is really no antifreeze, we can replace it with tap water. After all, it is better than nothing, because if the tank is short of liquid, this It can no longer play a role in cooling. If you drive suddenly and violently at this time, it is easy to "boiling" phenomenon. Of course, you still have to go to the auto repair shop to replace the original coolant as soon as possible.

But if you use tap water instead of coolant for a long time, it won't work, because long-term accumulation will cause scale to adhere to the surface of the water tank and water jacket, the heat dissipation effect is getting worse and worse, and it is difficult to remove it. If you are in a colder area, it is even more needless to say, because the tap water itself has no anti-freezing effect, it is easy to cause the water tank to freeze, and if you turn on the engine without knowing it, there is a certain chance that the water tank will burst.