Duke of Oil - Autofix provides car repair services and oil changes for car owners throughout the Chicago area. Duke of Oil specializes in routine car maintenance, as well as lube jobs, oil changes, tire rotations and battery replacements. Autofix is owned by the parent company, Duke of Oil, and provides extensive auto repair services, including safety inspections, tire replacements, brake replacements, tune-ups, transmission flush services, battery replacements, car washes, engine degreasing and other services. There are locations for this business throughout Illinois.