What Are the Reasons for the Car Engine Oil Light to Illuminate?

1 Answers
SanAnnie
07/24/25 6:40pm
The reasons for the car engine oil light to illuminate include insufficient oil level, excessively high engine temperature, damaged oil pump, and improper oil selection. Below are detailed explanations: Insufficient oil level: Under normal driving conditions, there will be oil consumption. Insufficient oil will reduce the oil pump's output or cause it to fail to pump oil due to air intake, leading to a drop in oil pressure. The oil pump's output decreases correspondingly with the reduced oil level, ultimately causing the oil pressure to drop and triggering the oil light alarm. Excessively high engine temperature: Prolonged aggressive driving keeps the engine in a high-temperature and high-load state. Even if the oil level is sufficient, excessively high temperatures can thin the oil, causing it to leak through gaps and resulting in a drop in oil pressure. Damaged oil pump: If the components of the oil pump wear out or develop excessive gaps due to improper assembly, the oil pump may fail to pump oil or pump insufficient oil during car operation, triggering the oil light alarm. Improper oil selection: Using oil with a lower grade or viscosity that does not match the factory-recommended oil can also cause oil leaks, leading to insufficient oil pressure and triggering the alarm. When the oil warning light comes on, do not continue driving the vehicle. The illumination of the oil warning light indicates that the engine oil pressure is too low. Continuing to drive will prevent proper cooling of the engine, and prolonged operation under high temperatures can cause significant damage.
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