Can I add mineral water when the engine temperature is too high?

[ColinLee]

When the engine temperature is too high, it is recommended to add coolant. Adding mineral water is only for emergency situations. Below are the relevant instructions: Park and cool down: Park the car in a safe place, do not turn off the engine, turn off the air conditioning system, and then open all windows. Get out of the car and place the warning triangle strictly according to regulations, approximately 150 meters behind the car. This alerts oncoming vehicles and completely avoids rear-end collisions after parking. Handling method: Check the coolant level in the radiator. Overheating is often caused by the coolant level being below the normal mark. If the coolant is insufficient, you can add mineral water in an emergency, but you must go to a repair shop afterward to completely replace it with coolant.

[HarperLynn]

I was driving to the mountains for a trip when suddenly the temperature gauge shot up and the warning light came on, which really freaked me out. Some people online often suggest adding mineral water as an emergency money-saving fix, but you really shouldn’t do that. Mineral water contains a lot of minerals, which can cause scaling and clog the radiator pipes or corrode components when added to the cooling system, making heat dissipation even worse. In severe cases, it can even lead to engine failure. That time, I resisted the urge to add mineral water, pulled over, turned off the engine, and waited for it to cool down. Then I checked the coolant reservoir and topped it up with some distilled water I had in the car, which helped the situation. Later, at the repair shop, I found out it was a small hose leak. After getting it fixed, I reminded myself to regularly change the coolant—it prevents both freezing and boiling. When the engine overheats, the safest thing to do is to stop immediately and find a repair shop. Don’t just add anything randomly, or you might complicate the problem and jeopardize your trip’s safety.

[McNaomi]

As a family-oriented driver, I am particularly sensitive to abnormal car water temperature. Never add mineral water when the temperature is too high, as mineral water is not pure and contains impurities that can clog cooling pipes or accelerate corrosion, leading to cooling failure or even engine seizure. Breaking down on the highway is extremely dangerous. Immediately pull over and turn off the engine, then check the coolant level after the engine cools down. If the fluid is low, add distilled water or a coolant mixture—I always keep a small bottle in the trunk for emergencies. Long-term maintenance is crucial; regularly inspect the water pump, radiator, and fan to avoid sudden breakdowns, especially during the hot summer months. Ensuring the vehicle is safe and reliable is key to transporting your family safely. Don’t cut corners by using mineral water—it’s not worth the risk.

[SanFernando]

As a new driver, I was quite nervous when encountering high engine temperature last time. While mineral water seems convenient, its harmful impurities can deposit and damage the cooling system. The correct approach is to pull over, turn off the engine, wait for it to cool down, check the reservoir, and add distilled water or dedicated coolant if the level is low for temporary relief. Never use mineral water as it may worsen clogging or corrosion, potentially requiring major repairs. For regular maintenance, periodically check the coolant level, maintain proper quantity with antifreeze mixture to keep the engine healthy. When encountering issues, always prioritize contacting professionals rather than taking improper actions to ensure driving safety.

[LeMicah]

After years of car enthusiasm, the cooling system is my top concern. Overheating is a serious issue, and adding mineral water only makes things worse—its mineral content can cause scaling, clogging narrow tubes and reducing cooling efficiency, which heightens the risk of overheating. Coolant is specifically designed with antifreeze, anti-boil properties, and protective additives. Mixing in mineral water can dilute or neutralize these benefits. In a pinch, distilled water is the only temporary solution, but it's always best to visit a shop to diagnose the root cause, such as leaks or fan failure. Regular system maintenance with proper fluids ensures longevity and keeps your car running reliably.

[LaThomas]

Commuting 70 kilometers daily with a history of sudden temperature spikes, using mineral water is absolutely wrong. Impurities can cause corrosion or scaling, leading to bigger long-term issues. If the coolant level is low after stopping and cooling, I add distilled water as an emergency measure—keeping a bottle in the car is practical, but mineral water is truly unsuitable. The cooling system requires pure fluids like coolant, which prevents leaks and boiling. Regularly check the coolant reservoir for signs of leaks, such as discoloration, and repair promptly to avoid major failures. Driving with proper maintenance ensures peace of mind and saves on costly repairs.