What causes the car teapot light to come on?

[FernandoLee]

The car teapot light refers to the engine oil warning light, and the reasons for the engine oil light coming on are as follows: Insufficient engine oil level: Commonly known as "oil burning," or normal oil consumption, the oil pump's output decreases due to low oil levels, ultimately leading to a drop in oil pressure and triggering the oil warning light. Engine overheating: Prolonged aggressive driving keeps the engine under high temperature and heavy load conditions. Even with sufficient oil, excessive heat thins the oil, causing it to leak through gaps and resulting in reduced oil pressure. Oil pump failure: Worn-out or improperly assembled components in the oil pump can create excessive gaps, leading to abnormal operation. If the oil pump fails to deliver oil or delivers insufficient oil, the oil warning light will activate. Incorrect oil selection: Using lower-grade oil or oil with viscosity that doesn't match the manufacturer's specifications to save costs can also cause oil leaks, leading to insufficient oil pressure and triggering the warning light.