How do you change the oil in Ford Mondeo 2000 diesel?

To change the oil in a 2000 Ford Mondeo diesel, first ensure the car is on a level surface and the engine is cool. Start by removing the oil filler cap and placing a drain pan under the oil pan, then unscrew the oil drain plug to let the old oil drain completely. Replace the drain plug, remove the old oil filter, and install a new one after applying a bit of new oil to the rubber gasket. Finally, pour in the new oil through the filler cap, check the level with the dipstick, and run the engine for a few minutes to circulate the oil.