Senior Airman Jeremy Lee, 509th Logistics Readiness Squadron general purpose mechanic, checks the transmission fluid levels in a government vehicle at Whiteman Air Force Base, Mo., Oct. 26, 2015. Preventative maintenance such as checking fluid levels, tire pressure and tread are some of many duties vehicle maintainers perform to ensure the base’s fleet of vehicles is fully operational. (U.S. Air Force photo by Airman 1st Class Michaela R. Slanchik/Released)