Another fun trick is attaching a strong magnet to the bottom of the oil pan or in some cases put it inside the pan like my grandpa taught me, the magnet sticks where you leave it if it's inside the pan as long as it's a magnetic metal and during the life of the oil it pulls the metal bits out and keeps them in one place instead of circulating the system. You get more life out of parts and oil filters when that stuff is kept at the bottom of the case instead of being forced through the motor.