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).
Oil change frequency: Miles vs. Time. When I get an oil change, the mechanic usually affixes a sticker to my windshield telling me to get another oil change after 3,000 miles or six months. Now that I'm retired, it sometimes takes well over a year to go 3,000 miles (I live in a city, near an excellent public transit system).