Senior Airman Trevor Kring, crew chief with the 162nd Maintenance Group, prepares to change the oil in a part of an F-16, checking with a fellow maintainer for accuracy. All of the oil that is gathered from routine maintenance or spills is collected and recycled by an outside company, and is then re-refined into motor oil. The 162nd Wing recycles more than 5,000 gallons of oil every year. (Air National Guard photo by Capt. Logan Clark)
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