Is it serious if the car's oil life turns negative?

[Evans]

The car's oil life turning negative indicates that the lubricating ability of the engine oil has significantly decreased. It is necessary to replace the engine oil promptly to ensure sufficient lubrication for the engine. Extended content on measures to improve the service life of engine lubricating oil: 1. Strengthen the maintenance of the coarse and fine filters and air filter for the lubricating oil: The coarse and fine filters can timely filter out impurities and sediments in the lubricating oil, thus extending its service life. 2. Use lubricating oil that meets the required quality standards: The quality of the lubricating oil greatly affects whether it is prone to deterioration during use. The properties of lubricating oil related to its tendency to deteriorate in diesel or gasoline engines are mainly viscosity, oxidation resistance, and corrosion resistance. 3. Maintain appropriate oil temperature, water temperature, and oil pressure: During use, gasoline engines should maintain an oil temperature of 80-85°C and a water temperature of 80-90°C.