JB Charleston Fuels

Airman 1st Class Grant Kelly, pulls a hose from an R-11 Fuel Truck so Jet fuel can be pumped into a C-17 Globemaster III May 9, 103, at Joint Base Charleston, S.C. The R-11 Fuel Truck holds up to 6,000 gallons of Jet A fuel at a time. (U.S. Air Force photo/ Senior Airman Dennis Sloan)

JB Charleston Fuels

Airman 1st Class Grant Kelly, pulls a hose from an R-11 Fuel Truck so Jet A fuel can be pumped into a C-17 Globemaster III May 9, 103, at Joint Base Charleston, S.C. The R-11 Fuel Truck holds up to 6,000 gallons of Jet fuel at a time. (U.S. Air Force photo/ Senior Airman Dennis Sloan)

JB Charleston Fuels

Senior Airman Mark Miller, 628th Logistics Readiness Squadron Fuels Laboratory technician, checks a jar of Jet fuel from an R-11 Truck for water and sediments May 9, 2013, at Joint Base Charleston – Air Base, S.C. Since fuel is lighter than water the two separate during this test while sediments gather in the middle. (U.S. Air Force photo/ Senior Airman Dennis Sloan)

JB Charleston Fuels

Airman 1st Class Chaz Wise, 628th Logistics Readiness Squadron Fuels technician, drains fuels from a filter, which was used to test for water May 9, 2013, at Joint Base Charleston – Air Base, S.C. Jet fuel is passed through a filter which is then placed under an ultraviolet light that will turn the filter green if water is found in the fuel. (U.S. Air Force photo/ Senior Airman Dennis Sloan)

JB Charleston Fuels

Airman 1st Class Chaz Wise, 628th Logistics Readiness Squadron Fuels technician, uses a device to test the level of Fuels System Icing Inhibitor in Jet fuel May 9, 2013, at Joint Base Charleston – Air Base, S.C. Fuels System Icing Inhibitor prevents water in the fuel from freezing and prevents organisms from growing in the water as well. (U.S. Air Force photo/ Senior Airman Dennis Sloan)

JB Charleston Fuels

Senior Airmen Mark Miller and Airman 1st Class Chaz Wise, 628th Logistics Readiness Squadron Fuels technicians, use a hydrometer to perform an API Gravity test on Jet fuel May 9, 2013, at Joint Base Charleston – Air Base, S.C. The hydrometer floats when the fuel is at 60 degrees Fahrenheit. Since fuel expands and contracts when exposed to hot and cold temperatures, the API Gravity test can provide Airmen with the accurate number of gallons in a fuel tank depending on the outside temperature. (U.S. Air Force photo/ Senior Airman Dennis Sloan)