What is the method for selecting car antifreeze?

2 Answers
JulianFitz
07/23/25 7:57pm
The method for selecting car antifreeze is: 1. Choose antifreeze that matches the vehicle model; 2. Smell the antifreeze to ensure it has no unusual odor. The steps for replacing antifreeze are: 1. Open the vehicle's engine hood, and the antifreeze reservoir can be seen in the upper right corner; 2. Open the antifreeze drain plug under the radiator to drain the old antifreeze; 3. Add new antifreeze, tighten the cap, and the antifreeze replacement is complete. The functions of antifreeze are: 1. To provide anti-corrosion protection for the engine's cooling system; 2. To prevent the engine water from boiling when the temperature reaches 100 degrees Celsius; 3. To prevent the formation of scale, avoiding a reduction in the radiator's cooling efficiency; 4. To ensure the engine operates normally under low-temperature conditions.
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OSara
08/10/25 6:01pm
Hey, I'm Lao Li, with over 30 years of driving experience. Choosing antifreeze is no trivial matter—it must suit your car's specific needs. Every time I change antifreeze, I first check the owner's manual to see what type it recommends. For my current Ford, for example, it specifies HOAT-type to avoid compatibility issues. The freezing point must match local weather conditions; living in Harbin, where winter temperatures can drop to -40°C, I opt for antifreeze rated at -35°C, ensuring strong freeze and boil resistance. Never mix different-colored antifreezes—once I tried saving money by mixing green and blue, which clogged the radiator and caused a costly repair. Stick to reputable brands like Shell or Mobil for reliable quality. Check fluid levels regularly and replace every two years to prevent acidity from corroding the engine. Safety is at stake—don’t cut corners to save small money.
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