Lubricates buses, automobiles, and trucks; fills gas tanks and services vehicles with oil and antifreeze; checks air pressure in tires; answers road calls of disabled vehicles, changes tires, charges batteries, and makes minor emergency repairs; makes shop repairs to damages tires. Repairs, adjusts, or replaces individual or component parts on buses, automobiles, and other automotive equipment, including valves, pistons, bearing assemblies, and cooling, feed, and exhaust systems, tunes motors, repairs and adjusts generators and starters, tests circuits, and does diverse electrical work.