What is the procedure for changing car engine oil?

[ValerieMarie]

Here are the steps for changing engine oil: 1. Wait for the engine temperature to cool down, allowing the oil to drain back into the oil pan. 2. Use a wrench to loosen the oil drain plug, place an oil pan underneath to catch the old oil until it stops flowing. Then start the engine and let it run for 30 seconds to drain the oil from the main oil passages. 3. Use a specialized wrench to remove the oil filter; apply new oil to the oil seal of the new oil filter and hand-tighten it clockwise. 4. Add new oil through the oil filler cap on the engine valve cover, typically filling about three-quarters of the oil container. 5. Start the engine and let it run for 5 minutes, then check for any oil leaks around the drain plug and oil filter. If leaks are found, repairs should be made. 6. After stopping the engine, pull out the oil dipstick to check that the oil level is within the standard range.