And this is why mpg is such a bad unit! 10 mpg sounds like a LOT, but in reality its only 0.3 litre per 100km. At the same time going from 30 to 40 mpg is over

And this is why mpg is such a bad unit! 10 mpg sounds like a LOT, but in reality its only 0.3 litre per 100km. At the same time going from 30 to 40 mpg is over 2 litres. MPG is a unit designed to CONFUSE.