What is the lifespan of lubricants?

The service life of lubricating oil depends on its type and operating conditions. Fully synthetic oil is generally recommended to be changed every 8,000 to 12,000 kilometres or 6 to 12 months, semi-synthetic oil every 7,500 kilometres or 7 to 9 months, and mineral oil every 5,000 to 7,500 kilometres or 3 to 6 months. The specific replacement interval should be adjusted based on factors such as the recommendations in the vehicle's owner's manual, driving environment (e.g., urban congestion or high-speed driving), climatic conditions (extreme temperatures accelerate oil degradation), and driving habits (frequent rapid acceleration shortens oil life). Regularly checking the oil condition (such as darkening colour, emulsification, or metal debris) is an important basis for determining whether early replacement is needed. Proper maintenance can extend the engine's service life and ensure driving safety.