<human>:  How do you properly change the oil in a car?
<bot>: To properly change the oil in a car, you will need a few supplies including a car jack or ramps, a wrench to loosen the oil filter, a container to catch the old oil, an oil filter, and fresh oil. You will also need a funnel, especially if the car is lower to the ground. Begin by loosening the oil plug at the bottom of the engine and draining the oil. Once the oil is drained, use a wrench to loosen the oil filter and gently remove it, being sure to catch any remaining oil in the container. Replace the oil filter and fill with new oil, using the funnel if necessary. Finally, replace the oil plug and check for any leaks before starting the engine.