Despite running some more errands than usual, 2 days with traffic jams, 3 days with far more wind than usual, some excess oil, and continuing DPF issues, I've still pulled off a record tank of 4.28 L/100km or 54.93 MPG(US) !
During some of my commutes, I've been experimenting with 95kph (59mph) on the motorway - which I previously thought wouldn't help.
I've also been driving slower in 4th - going 40mph rather than 45mph, or even only 30mph.
In addition, I've been going faster - 50mph instead of 45 - but in 5th gear.
Both techniques work well after coasting down from a higher speed with a warm engine.
Using cruise control seems mandatory to get the best indicated fuel consumption.
The moment the car needs to accelerate or climb, the magic is gone.
I need more torque down low