Is 0W40 Oil Suitable for All Seasons?
1 Answers
0W40 engine oil is considered all-season oil, but its suitability still depends on the temperature of the location where the vehicle is used. The 0W designation indicates the oil's cold-start performance—the smaller the number, the better the oil's cold resistance. Therefore, using 0W40 oil allows for easy engine starts even in cold weather. The number 40 represents the kinematic viscosity standard at 100°C (between 12.5mm²/s and 16.3mm²/s). Additional information: 1. In fact, many modern engine oils are designed for both winter and summer use, primarily depending on the oil's quality grade and performance. If the engine frequently operates under high-load conditions (accelerating oil consumption), it is advisable to use full synthetic or semi-synthetic oil. 2. As for quality grades, following the level specified in the vehicle's manual is generally sufficient for daily use. However, if the vehicle is often driven in congested urban environments, upgrading to a higher-grade oil (more environmentally friendly and economical) may be considered.