The pods enable the boom operator to refuel two planes at once. After the boom operator establishes contact with the aircraft's fuel tank, the computer takes over. Up to 1,100 gallons of fuel flow through the boom per minute and about 470 gallons per minute through the drogue.
Car manufacturers often suggest changing oil filters every other time you have your oil changed. Most parts and oil manufacturers, however, say to replace oil filters with every oil change, which should occur every 3,000 miles or three months (whichever comes first).
The instant oil change places say you need to change 3 months or 3,000 miles, and that's not a bad idea, but you can stretch it. The State of Michigan does oil changes on its fleet cars every 5,000 miles. Many manufacturers say to change the oil every 7,500 miles.