Ford Mercury Villager 1997 Owner's Manual page 316

Metric: L/100k = Multiply the number of liters used by 100
and divide the answer by the number of kilometers
travelled.
Comparisons With Environmental Protection Agency
(EPA) Fuel Economy Estimates
EPA fuel economy figures are obtained from laboratory tests
under simulated road conditions and may not reflect the actual
conditions you experience or your style of driving. The EPA fuel
economy estimate is not a guarantee that you will achieve the
fuel economy shown.
The following decrease fuel economy:
Lack of regular, scheduled maintenance
Rapid acceleration and excessive speed
Driving with your foot on the brake
Sudden stops
Extended engine idling
Using speed control in hilly terrain
Extended use of the A/C, defroster, rear window defroster
and other accessories
Underinflated tires
Heavy loads
Aftermarket add-ons such as bike, ski or luggage racks, bug
deflectors, etc.
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