Can I add water when the radiator is out of water?

[DelValeria]

When the car radiator is out of water, it is absolutely forbidden to add water while the engine is hot. The high-pressure hot gas inside can cause burns, and adding room-temperature coolant may cause the engine to crack. Correct method: Wrap the radiator cap with a wet towel, slowly open the first switch (about 1/4 turn), wait for the steam pressure to be completely released, then fully open the radiator cap. If the water level is insufficient, slowly add water up to near the maximum mark. Tip: When encountering a high water temperature alarm, first reduce speed, then pull the car to the roadside. Do not rush to turn off the engine, as excessively high water temperature can cause the piston, cylinder walls, cylinder, crankshaft, etc. to overheat, thinning the engine oil and losing its lubricating effect. If the engine is turned off at this time, the components are in an expanded state with very small gaps between parts. This may cause some soft metals to fall off after shutdown, and in some cases even lead to cylinder sticking.