How do you change oil on a 2012 ford e450?

To change the oil on a 2012 Ford E-450, start by warming up the engine for a few minutes to thin the oil, making it easier to drain. Next, secure the vehicle on a flat surface, then place a drain pan under the oil pan and remove the drain plug to let the old oil flow out. Replace the oil filter using an oil filter wrench, then reinstall the drain plug once all oil has drained. Finally, add new oil through the oil filler cap, checking the dipstick to ensure the correct level.