What type of engine oil is used in the Great Wall Pao diesel version?

[ValeriaMarie]

The Great Wall Pao diesel version uses engine oil with the specification 5W-40. Engine oil, also known as motor lubricant, serves multiple functions such as lubrication to reduce friction, assisting in cooling, sealing to prevent leaks, rust and corrosion prevention, and shock absorption. Usage scenarios for different engine oil specifications: High-temperature types for summer use: 20, 30, 40, 50. The larger the number, the higher the viscosity, and the higher the maximum applicable temperature. Low-temperature types for winter use: 0W, 5W, 10W, 15W, 20W, 25W. The 'W' stands for Winter, and the smaller the number before 'W,' the lower the low-temperature viscosity and the better the low-temperature fluidity, making it suitable for lower minimum temperatures. All-season types for both winter and summer use: 5W-20, 5W-30, 5W-40, 5W-50, 10W-20, 10W-30, 10W-40, 10W-50, etc. The smaller the number before 'W,' the lower the minimum applicable temperature, and the larger the number after the hyphen, the higher the maximum applicable temperature.