What is the reason for the car's oil pressure warning light to illuminate?

[Preston]

The car's oil pressure warning light is the engine oil pressure indicator. The oil light illuminates due to low oil pressure. Causes of low oil pressure include: 1. The oil level is too low. 2. The oil passage is blocked. 3. The oil has deteriorated. 4. The oil pressure sensor is faulty. Additional information: 1. The oil filter should be replaced every time the oil is changed, and the filter must be tightened to the specified torque during replacement. If the oil filter is not tightened properly, it can cause oil leakage, which may also lead to low oil pressure. 2. Low oil pressure can result in poor lubrication and abnormal wear of internal engine components. Once the oil pressure warning light comes on, the engine should be shut off as soon as possible, and assistance should be called to avoid further damage.