<human>: I have a question about my car. How do I change the oil?
<bot>: You can either take it to a mechanic or you can do it yourself. To do it yourself, you will need to find the oil pan and drain plug underneath your car. Then, use an oil filter wrench to loosen the drain plug, then remove the oil pan and drain the oil into a container. Finally, replace the oil filter and refill with new oil.