Can I still drive with the engine oil life showing 15%?

[VanDylan]

It is not advisable to drive with the engine oil life showing 15%. The functions of engine oil are as follows: Lubrication and wear reduction: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing bush. To prevent excessive wear of parts, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby reducing wear. Cooling: Engine oil can carry heat back to the oil tank and then dissipate it into the air, helping the radiator to cool the engine. Cleaning: Good engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation. The flow of the lubricating oil washes away dirt generated on the working surfaces of the parts. Sealing and leakage prevention: Engine oil can form a sealing ring between the piston ring and the piston, reducing gas leakage and preventing external contaminants from entering.