D4 S8 2014….real mpg figures

[tonupkid]

Here you go.

This picture was taken last month and shows the long-term memory in my 2016 S8 Plus. It's accumulated this data over more than 17k miles, as you can see, so it's a pretty stable average.
On a motorway run staying below about 78 MPH and with the benefit of those distressingly boring camera-infested roadworks, it is easy to achieve 30+ MPG.

Having said that, even when 'shoving it along' it doesn't plummet alarmingly.