A 2019 Audi A6 3.0L 24V Turbocharged engine has an oil capacity of 7.6 liters, or 8 quarts, with a filter. The recommended oil viscosity is SAE 0W20, and it should meet the VW 508 00 or ACEA C5 quality specifications. The recommended oil change interval is 10,000 miles or once a year, whichever comes first.
Online and at the changing station.