Can a new car use 0w40 engine oil?

[LydiaDella]

New cars cannot use 0w40 engine oil. New cars require higher viscosity, and using 0W40 will result in insufficient lubrication and accelerate wear on components. Suitable engine oil for new cars: If a new car only requires 0W20 viscosity engine oil, using 0W40 will cause some issues. Since the gaps between components in the engine of such cars are smaller, using 0W40 will increase engine resistance, leading to insufficient power and increased fuel consumption, among other effects. If the owner's car previously used lower viscosity engine oil, when the car reaches a certain age and becomes older, they may consider using 40 viscosity grade engine oil. Meaning of engine oil grades: For example, in 0W40, W stands for Winter, and the preceding number indicates low-temperature fluidity. The smaller the number, the greater the low-temperature fluidity, and it also represents the applicable minimum temperature. 0W is suitable for temperatures above -35°C; 5W is suitable for temperatures above -30°C; 10W is suitable for temperatures above -25°C, and so on.