What is the method for changing car engine oil?

[DelEzra]

The method for changing car engine oil is: 1. Start the engine until it reaches normal operating temperature, then use a jack to lift the vehicle, engage the handbrake, and secure the front wheels with wooden wedges; 2. Loosen the oil drain plug and place an oil pan underneath to catch the old oil. Run the engine for 30 seconds to allow the oil in the main oil passage to drain out. Remove the oil filter with a special wrench, apply oil to the oil seal of the new oil filter, and tighten it clockwise by hand; 3. Add new engine oil through the oil filler cap on the engine valve cover, filling about three-quarters of the oil container; 4. Run the engine for 5 minutes and check for any oil leaks around the oil drain plug and oil filter. If leaks are found, perform necessary repairs; 5. After stopping the engine, pull out the oil dipstick to check that the engine oil level is within the standard range.