What are the winter engine oil specifications?
2 Answers
Winter engine oil must meet three key characteristics: low viscosity, low pour point, and good anti-wear properties to provide optimal protection for the engine. During winter, temperatures are lower, which reduces the fluidity of cold engine oil. Some oils may even solidify in environments below -10°C, so winter-grade oil must have excellent low-temperature fluidity. If temperatures drop to -30°C, it is advisable to use 5W or 0W engine oil. Here are the details: Characteristics of winter engine oil: Winter engine oil must meet three key characteristics: low viscosity, low pour point, and good anti-wear properties to provide optimal protection for the engine. During winter, temperatures are lower, which reduces the fluidity of cold engine oil. Some oils may even solidify in environments below -10°C, so winter-grade oil must have excellent low-temperature fluidity. The number before the "W" in the oil specification indicates its low-temperature fluidity. Meaning of "W": A smaller number before the "W" indicates lower viscosity and better low-temperature fluidity, making it suitable for colder climates. A larger number after the "W" indicates higher viscosity, ensuring more stable performance under high temperatures. When selecting engine oil, ensure the specification is correct and the oil is genuine, as counterfeit or substandard oil can damage the engine.
I remember choosing the right engine oil is crucial for winter car use. Last year, my car had difficulty starting in temperatures below -10°C, and the repair shop recommended switching to winter-grade oil, such as 0W-20 or 5W-30. These types have better fluidity in low temperatures, ensuring smooth cold starts for the engine. The numbers at the beginning, like 0W, indicate the oil can function at around -35°C, with 'W' standing for 'winter.' When selecting oil, always refer to your vehicle's manual, as different cars have recommended specifications. Using oil with the wrong viscosity—especially if it's too thick—can increase engine wear in winter and may also lead to higher fuel consumption. I make it a habit to check the oil condition before winter, ensuring it's fresh and clear, and also verify the oil level on the dipstick to avoid dry starts. Overall, using the correct oil can extend engine life, making driving safer and more worry-free.
