Dave Roney, 28th Force Support Squadron auto hobby shop manager, tests the density of antifreeze in a vehicle to ensure it can withstand cold temperatures at the auto hobby shop on Ellsworth Air Force Base, S.D., Oct. 23, 2012. Motorists can ensure their vehicles are ready for winter by checking their vehicle’s battery, tires, exhaust system, and other key areas. For more information about vehicle winterization, call the auto hobby shop at (605) 385-2900. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)