What are the signs of insufficient engine oil in a car?

[LaBriella]

When a car is low on engine oil, a teapot-shaped warning light will illuminate. This indicator is the engine oil pressure warning light. The oil pressure warning light is easy to remember—when you see a continuously lit teapot signal, it means the car is reminding the owner to change the engine oil promptly. Below are the specific steps for adding engine oil: 1. When the engine oil is insufficient, you can add it yourself. However, it's important to ensure the oil level remains slightly below the upper mark on the dipstick. First, turn off the engine and open the hood. 2. Next, locate the oil filler cap and unscrew it. Do not pour the oil directly in at this point—you must first drain the old oil from the oil tank. Open the drain plug and collect the old oil in a prepared container. 3. Note that the new oil added should be the same brand as the previous oil, and the opened oil bottle should not be older than one year. Once everything is ready, use a funnel to pour the oil into the filler hole until the tank is filled.