Does anyone know why
gas consumption in metric is liters per 100 kilometers? Why isn't kilometers
per liter the standard, like MPG?
Rich Kim
It is usual to characterize lawn mowers, motor boats, locomotives, by their consumption of fuel per unit travelled. Hence, in most metric countries automobile consumption is quoted litres per hundred kilometres (I would prefer L/Mm). In American units for automobiles the consumption could be expressed as gallons per 100 miles, or gills per mile. The latter is impractical. Miles per gallon (mileage) just fits better.
