In the light of covid19 confinement and curfew, I went for a cruise with my wife in our 1.0l car. This is the same car an idiot mechanic worked on when it was so full of gum the valves wouldn't close and it failed to start any more. The Mitsubishi mechanic removed the head and "fixed" it under warranty, but compression afterwards has remained only between 150psi and about 160 on all three cylinders but thankfully it doesn't burn oil. No idea what that nitwit did.
We drove along the Rhine valley region which is a flat area and there was no wind and not much other traffic on the country roads.
Here is a picture of the tach after about half an hour's drive. The MPG display was the same when we got home about one and a half hours later.
3.5l/100km works out to be 67 MPG/US. Not bad for a car with only 150psi compression.
How do I drive? I avoid high speeds, take my foot off the gas approaching a red light or traffic jam, and otherwise drive as if I were barefoot and there being thumbtacks on the brake pedal. The car has 165/65r14 Continental EcoContact5 LRR tyres at maximum allowable pressure.
There are plenty of good driving hints on Metro's pages, and on Ecomodder, see:
https://www.metrompg.com/posts/hyper...as-mileage.htm
https://www.ecomodder.com/