Do modern cars still need water?
2 Answers
Modern cars do not require water as they use antifreeze instead. Water is only used as a temporary substitute for antifreeze in emergencies when antifreeze is insufficient and cannot be obtained promptly. However, this is only a short-term solution and should not be used as a long-term replacement. Specific details are as follows: 1. Hazards of using water: Prolonged use of water instead of antifreeze can damage the car's thermostat and clog the cooling channels. Therefore, it is essential to regularly check the antifreeze level. It is advisable to keep antifreeze in the car, stored in a cool place away from direct sunlight, and ensure the cap is tightly closed to prevent oxidation from air exposure, which can significantly reduce its antifreeze properties. 2. Choosing antifreeze: Generally, the freezing point of the antifreeze should be 10–15°C lower than the local minimum temperature to prevent the antifreeze from losing its functionality. Most family cars require antifreeze replacement every two years or 40,000 kilometers.
I've been driving for decades and remember that old cars indeed needed water, especially for summer cooling. But now, small cars all use specialized coolant. Adding pure water can actually cause trouble—it might freeze and burst pipes in winter or boil easily in high summer temperatures. I once saw a neighbor's car break down due to engine overheating after adding water. Modern designs have plastic tanks labeled 'coolant,' so no water is needed. During checks, open the hood and look for a translucent bottle to check the fluid level. If it's below the minimum line, add the manufacturer-recommended blue or green liquid. This prevents freezing, rust, and maintains stable engine temperature. Don't cut corners by adding tap water—repairs will cost more if it breaks. Every time I get maintenance, I remind the mechanic to check this—it's safe and worry-free, especially since driving concerns the whole family.
