What to Do When the Car Engine Oil Indicator Light Comes On?
1 Answers
Generally speaking, when the engine oil indicator light on the car dashboard comes on, it is mostly due to insufficient oil level, which serves as a reminder for the owner to add oil. In this case, you can open the engine compartment, check the oil dipstick's scale line, and add oil as needed. Other reasons for the oil light to come on include: 1. Excessive oil viscosity: The viscosity of the oil is closely related to its quality. The higher the viscosity, the better the oil's resistance to high temperatures, and vice versa. However, higher viscosity is not always better; you should use an oil grade that matches your engine. 2. Pressure relief valve blockage or improper adjustment: To prevent excessive oil pressure in the lubrication system, which increases engine power consumption and causes oil leaks at sealed connections, a pressure relief valve is installed on the main oil passage or oil pump. Its function is to limit the oil pressure in the lubrication system to within the specified range. A faulty pressure relief valve can lead to abnormal oil pressure, causing the oil light to come on. 3. Engine overheating: If the engine cooling system has excessive scale, poor heat dissipation, prolonged overload operation, or delayed fuel injection timing, the engine may overheat, accelerating oil aging, deterioration, and thinning, leading to leaks through various clearances, pressure drops, and the oil warning light coming on. 4. Oil filter blockage: When the oil filter is blocked and cannot circulate, the bypass valve on its base opens, allowing oil to bypass the filter and enter the main oil passage directly. If the bypass valve's opening pressure is set too high or too low, the oil pump's pressure will rise or fall, which can also trigger the warning light. Solution: Once the oil deficiency indicator light on the dashboard comes on, you should immediately take the car to a 4S shop for inspection and repair. Do not continue driving recklessly, as this may worsen engine wear and, in severe cases, cause irreversible damage to the engine.
