Is it Necessary to Add Antifreeze in Hot Weather?
3 Answers
Even in hot weather, cars still require antifreeze as it possesses excellent properties such as preventing freezing in winter, boiling in summer, and offering year-round protection against scale and corrosion. Composition of Antifreeze: The main components of antifreeze are: 50% pure water, 40% methanol, and 10% other substances. Types of Antifreeze: Antifreeze is generally categorized into three types: ethanol-water type, glycerol-water type, and ethylene glycol-water type. Can Different Antifreezes Be Mixed? It is essential to use the same brand of antifreeze. Different brands may have varying production formulas, and mixing them could lead to chemical reactions between multiple additives, rendering them ineffective. How to Choose Antifreeze: The basic indicators of antifreeze are its freezing and boiling points. Market-available antifreezes come in several freezing point specifications, such as -15°C, -25°C, -30°C, and -40°C. Generally, it is advisable to choose one that is at least 10°C lower than the lowest temperature in your region.
Having driven for over a decade, I've noticed many people think antifreeze is only for winter use. In reality, it's even more indispensable in hot weather. Antifreeze doesn't just prevent freezing—it also stops coolant from boiling. When engine temperatures soar in summer, it acts like a protective umbrella to maintain system stability. I recommend regularly checking the fluid level and color. If it turns cloudy or drops below the minimum line, top it up immediately. Antifreeze also prevents corrosion and extends water pump life. Don't wait until your car breaks down—engines are more prone to overheating in high summer temperatures, leading to costly overhauls. Make it a habit to check every six months and replace as per the manual, typically every 2-3 years. This way, you'll drive with peace of mind, save money, and keep your car running smoothly.
During the last heatwave, my car's AC wasn't performing well. Upon checking, I found the coolant level was low, causing strain on the cooling system. After topping it up, there was immediate improvement—even the engine sound became smoother. Coolant acts as a cooling agent in hot weather, preventing failures caused by lowered boiling points. As someone who does DIY maintenance, checking the level is simple: pop the hood and locate the radiator or overflow tank dipstick. Use a tester to measure concentration—too high or low affects performance. A quick tip: stick to compatible types and avoid mixing brands to prevent chemical reactions. With frequent summer driving, fluid depletes faster—I take a quick peek monthly for peace of mind.
