Verbauch 3.2 V6 front drive at constant 100km/h

Hello Phaeton driver, have a question about the Phaeton V6 3.2 petrol engine with front drive. What kind of consumption does the car have if you move it at 100km/h constantly on the motorway train?? For example with a total distance of 100km. Can you possibly tell me approximate details? Thanks already… Greetings Peter