Miles per gallon, it's the "standard measure" of fuel consumption in the UK although the kilometre is much more widely used than the gallon. (making a metric measure more sensible!)
But I don't care about miles per gallon...
in civilised terms, fuel consumption is measured in litres per 100 kilometres. (L/100km)
is this really practical?
Most British car adverts show fuel consumption in L/100km (unfortunately most times in brackets and in small print).
but why not kilometres per litre? (km/L)
personally, I think km/L is simpler to get to grips with, and more practical because you know that you'll drive y km using x L of petrol at a given fuel consumption.
(y/x km/L). eg. 6 km on 2 litres of petrol at 3km/L!
using L/100km is not as practical!
so why make life more difficult?
sure many people would rather switch to km/L rather than L/100km!
why not use km/L ?
...they do in Latin America and Japan!