What are the signs of low engine oil in a sedan?

[MacLila]

When a car is low on engine oil, it will display a teapot-shaped warning light, which is the oil pressure indicator. The oil pressure indicator is easy to recognize—when you see a constantly lit teapot signal, it means the car is reminding the owner to change the oil promptly. Below are the specific steps for adding engine oil: 1. If the car's engine oil is insufficient, you can add it yourself, but you need to ensure that the oil level remains slightly below the upper mark on the dipstick. First, turn off the engine and open the car's hood. 2. Then locate the oil filler cap and unscrew it. Do not pour the oil directly in at this point; you need to clean out the old oil from the oil tank first. Open the drain plug and collect the old oil in a prepared container. 3. It is important to use the same brand of oil as before, and the opened oil bottle should not be older than one year. Once everything is ready, use a funnel to add the oil to the tank through the filler opening.