here is the video, i installed a scangauge 2 in the second part for load reference:
There is already improvements of about 0.4 L/100km on this tank same commute to work despite dropping temperatures and more active weather. High Map and Low RPM is the way to go. Now a manual transmission swap with a longer final gear and drive is next modification. I think gearing that allows cruising at 1800RPM @60 MPH will be ideal in this car.