Woohoo!
70 MPG (US) = 3.4 L/100 km indicated
This was for a 79 km / 49 mile one-way trip.
Conditions were decent: mild (3C / 37F), with dry roads. The key element was a 15 km/h / 9 mph quartering tail wind. I've seen multiple trips in the low to mid-60's this (mild) winter, but this was the one I've been waiting for.
Route details: max posted limit of 80 km/h / 50 mph, passing through 3 towns. Average speed of 37 mph (includes multiple stop signs/red lights), max speed of 98 km/h / 60 mph (downhill - ha!).
Driving style: driving with load within a couple of km the speed limit on the open road, EOC down a few of the steeper hills and approaching stops & turns.
This is not 70 "actual" MPG - the display was 3-4% optimistic on the last couple of fill-ups compared to pump calculations.
But it's still fun to see!
Next up: 70 MPG round trip... then a "real" 70 MPG trip (that'd be 72.8 indicated)... 75! All of which will require much warmer weather.