How to Identify Antifreeze Engine Oil Models?
2 Answers
Antifreeze engine oil models can be identified by: 1. The number before 'W' represents the low-temperature solidification temperature. The smaller the number, the better the oil's fluidity at low temperatures, indicating suitability for lower ambient temperatures; 2. The number after 'W' represents the oil's viscosity at 100°C. The larger the number, the higher the oil's viscosity, meaning it can better adhere to the engine block in high-temperature environments, offering superior protective performance. Engine oil consists of base oil and additives, serving the following purposes: 1. Reducing friction and high temperatures; 2. Cooling and temperature reduction; 3. Cleaning and purification; 4. Shock absorption and buffering; 5. Rust and corrosion prevention.
Identifying the type of antifreeze is actually quite simple. When I service my car, I rely on reading the label on the bottle. For example, the label will have model codes like G12, G13, which represent different formulations and technical standards. Never rely solely on color because red or green can vary by brand and can be easily confused. I remember one time I used the wrong type, and it corroded the cooling system, nearly ruining the engine. It's best to refer to the car's user manual, which will clearly specify the recommended type. If you don't have the manual, choose one compatible with the original fluid, ensuring the freezing and boiling points meet the requirements. Regularly checking the antifreeze is also crucial to avoid sudden failure leading to engine overheating. When buying new fluid, opt for reputable brands like Castrol or Blue Star, as their labeling is clearer.
