Use a 17 mm wrench to loosen the oil drain plug.

Before removing the plug, be sure to place a drain pan underneath the oil pan to catch the oil.

Remove the drain plug, being sure that your drain pan will catch the oil even as its flow rate from the pan drops.

Allow the oil to drain until it stops to a slow drip. To save time, i normally proceed to change the oil filter while the oil is still draining.