What is the Engine Oil Viscosity Grade Chart?

[OFrancisco]

The viscosity grade of engine oil is closely related to the vehicle model and local temperature, indicating the ambient temperature. Below is an introduction to vehicle models and grades: 1. Vehicle models: Japanese cars primarily use low-viscosity oil, while German cars primarily use high-viscosity oil. 2. Grades: (1) 0W suitable temperature: -35°C (polar regions). (2) 5W suitable temperature: -30°C (northeast and northwest regions). (3) 10W suitable temperature: -25°C (north-central and southwest regions). (4) 15W suitable temperature: -20°C (north-central and southwest regions). (5) 20W suitable temperature: -15°C (areas south of the Yellow River and north of the Yangtze River). (6) 25W suitable temperature: -10°C (subtropical regions).