Ford 2015 Focus Owner's Manual page 130

5. Calculate fuel economy by dividing
miles traveled by gallons used (For
Metric: Multiply liters used by 100, then
divide by kilometers traveled).
Keep a record for at least one month and
record the type of driving (city or freeway).
This provides an accurate estimate of your
vehicle's fuel economy under current
driving conditions. Additionally, keeping
records during summer and winter show
how temperature impacts fuel economy.
In general, your vehicle will use more fuel
in cold temperatures.
Focus (CEW) Vehicles Built From: 16-02-2015, CG3630en enGBR, Edition date: 01/2015, First Printing
Fuel and Refueling
128