Dates: December 5 to December 22
Odometer: 46718 to 47581
Distance travelled: 863.0 km
Fuel used: 53.411 litres

Calculated fuel economy:
6.2 l/100 km
38.0 miles/US gallon
45.6 miles/imperial gallon

It was −18°C (−1°F) when I filled up this morning. We went from higher than normal temperatures to lower than normal in the space of a weekend. This is why my fuel economy is steadily declining. Here’s hoping it’s bottomed out. I doubt it though, as traffic slows when the weather is poor and it hasn’t been bad yet.