Which engine oil is more suitable for cars in winter?
3 Answers
Because the temperature is relatively low in winter, the low-temperature fluidity requirements for engine oil are higher. It is recommended to use 0W grade engine oil. Below are the relevant introductions: 1. The engine oil used in winter must meet three major characteristics: low viscosity, low pour point, and good anti-wear performance, so as to provide good protection for the engine. 2. The temperature in winter is relatively low, so the fluidity of engine oil in cold conditions is poor. Some engine oils may even solidify in environments below minus ten degrees Celsius. Therefore, the engine oil used in winter needs to have good low-temperature fluidity. 3. The number before the "W" in the engine oil grade represents the low-temperature fluidity of the engine oil. 4. 0W indicates a minimum operating temperature of -35°C; 5W can operate in environments with a minimum temperature of -30°C; while 10W can only be used in environments above -25°C, and so on. 5. Car owners can choose the engine oil with the required low-temperature fluidity according to the local minimum temperature. The lower the temperature, the better the low-temperature fluidity of the engine oil required.
I remember one particularly harsh winter when my car had a lot of trouble starting, and the engine made strange noises. It turned out the engine oil viscosity was too high. An expert told me that in winter, it's essential to choose low-viscosity oil, such as 0W-20 or 5W-30, because the smaller the number before the 'W,' the better the cold-start performance. 0W can withstand temperatures as low as -35°C, while 5W is suitable for around -30°C, making it more appropriate for most regions. It's also crucial to check the car manual for recommendations and avoid switching brands arbitrarily. After switching to 5W-30, the engine started much more smoothly and even saved a bit of fuel. My advice is to check the oil grade before each oil change to ensure it matches the season and to maintain regular servicing—delaying it can lead to oil degradation, which harms the engine. Overall, prioritize low-viscosity oil and don't let cold weather damage your car.
In winter when temperatures drop, choosing engine oil requires extra attention. With over a decade of experience driving family cars, I've encountered cold-start issues and now insist on using low-W-grade oils like 0W-20, which performs exceptionally well. The 'W' in oil grades stands for Winter, and smaller numbers facilitate easier cold starts while reducing engine wear. After switching to it, my engine starts quietly and quickly, giving me peace of mind when driving my kids to school. It's also crucial to pay attention to oil quality—opt for reputable brands like Mobil or Castrol, and avoid cheap off-brands. Additionally, regularly check the oil level; in winter, ensure it doesn't drop below the midpoint on the dipstick, and keep some emergency tools in the car. Preventing minor issues ensures safe family trips.
