What Causes the Engine Oil Light to Illuminate?

[PaulLee]

The reason the engine oil light illuminates is due to insufficient oil level, which requires immediate inspection. Use the dipstick to determine the remaining oil level in the vehicle. When checking the oil level, park the car on a flat surface, let it sit for over ten minutes, then pull out the dipstick to observe the remaining oil level. If it is below the lower limit on the dipstick, add oil promptly. The reasons for reduced oil viscosity are as follows: 1. Low-viscosity oil was selected during the oil change. 2. Oil viscosity decreases when the engine temperature is too high. 3. Oil viscosity decreases when fuel mixes into the oil. 4. Oil viscosity decreases when the engine operates under high load for extended periods.