Shop instructions state:
"For these shops you will be calling car dealerships and auto body shops and stating that you are doing an industry study for your Masters program at a university. There is little to no narrative associated with the reportsYou will ask questions about the type, price, packaging, volume, and supply source of oil products that they sell and record the manager's answers using drop down menus. If you call a location and the manager does not want to participate, you would just hang up and move to the next location. You will be required to review a 35 minute training prior to conducting your call."