Do Cars Need Water? How Often Should It Be Added?
1 Answers
Cars do not require water; they need specialized coolant instead. Automobile engines are water-cooled engines that rely on the continuous circulation of coolant within the engine for heat dissipation. The coolant follows two circulation paths inside the engine: a major cycle and a minor cycle. The functions of coolant are as follows: Anti-boiling: Coolant meeting national standards typically has a boiling point exceeding 105°C, compared to water's 100°C. This allows coolant to withstand higher temperatures without boiling (overheating), meeting the cooling demands of high-load engines to some extent. Anti-freeze: In extremely low temperatures, it ensures the vehicle's cooling system isn't damaged by freezing. Common antifreeze solutions usually have freezing points between -20°C and -45°C, selected based on regional needs to meet usage requirements. Anti-rust: High-quality coolant prevents rust formation in the cooling system, which could otherwise accelerate wear and reduce heat transfer efficiency. Anti-corrosion: The primary function of coolant is corrosion prevention. Corrosion, a chemical, electrochemical, and erosive process, gradually damages metal surfaces within the cooling system. Severe cases may lead to perforations in the cooling system walls, causing coolant leakage and engine damage.
