What does 10w30 engine oil mean?
2 Answers
10w30 engine oil refers to a multi-grade viscosity all-weather engine oil. The '10w' indicates the low-temperature viscosity performance of the oil in winter, while the '30' represents its high-temperature viscosity performance in summer. The smaller the number before 'w', the better the oil's fluidity at low temperatures, making it easier to start the car. The larger the number after 'w', the better the oil's viscosity in high-temperature environments, resulting in a stronger oil film. Engine oil is composed of base oil and additives. The base oil is the main component of the lubricant, determining its basic properties, and its functions include: 1. Lubrication and friction reduction; 2. Assisting in cooling; 3. Sealing and leak prevention; 4. Rust and corrosion prevention; 5. Shock absorption and buffering.
As an experienced driver who has been driving for many years, I think 10W-30 engine oil is quite common. The 'W' stands for winter, and the number 10 indicates good fluidity at low temperatures, making it easier to start the engine, while 30 represents the viscosity at high temperatures, protecting the engine from wear during operation. I've used it several times while driving in the north, and it provides quick cold starts in winter without any squeaking sounds. It's suitable for most regions with seasonal variations, such as northern or southern China, where it can be used effectively in both winter and summer. The benefits include better fuel efficiency and longer engine life. When changing the oil, always check your vehicle's manual for recommendations. If your car has a standard gasoline engine, 10W-30 is appropriate—avoid using other grades to prevent engine damage. Overall, it offers great value for money, being both economical and reliable, with oil changes needed only every 7,000 to 8,000 kilometers.
