Something hapened. At first it was much warmer outside and I was getting 6.8 average l/100km. Then as the temperature went down I was getting less and less. Last week I was getting 7.2 average l/100km. Then Tuesday here it was -9C in the morning. I got to fuel and reset the average l/km, drive to work and back and to my surprise it now show 6.5 l/100km average. When I reset it, the average went way up to 16l/100km because the engine was cold and all the red lights etc...but after warm up and short ride on the highway it went down to 6.5 and pretty much stayed there since then.
So what hapened? Did my engine finaly broke in? or was the fuel that I was putting in before mixed with water? I always gas at the same place though, so not sure if that's the case.
Is it possible that the oil became thicker with the colder temperature and that helped the metal to metal contact, giving better fuel economy? Not sure yet what to make of it. I will see with time but now I am getting 6.5 instead of 7.1 l/100km. Now this is much better! I am driving the same way since day one, eco-driving.
View my fuel log 2015 Micra SR automatic: 7.0 L/100 km ... 40.4 mpg (Imp) ... 14.3 km/L ... 33.6 mpg (US) ...