Average about 38mpg all depends how heavy your right foot is and your driving style. If your smoth you'll notice a small difference in mpg but not enough to make you rich lol.
Did an eco driving test this afternoon, first trip- drove like the average driver, hard accelerating and braking, averaged 46.8 mpg for 7.8 miles in 15 mins 30 secs, second trip- drove the same route but this time smoothly, braking only when necessary and maintaining momentum as much as possible, averaged 61.3 mpg and the journey only took 5 seconds longer!! That's a 31% increase in fuel efficiency; in other words, you could use up to a third less fuel by simply changing your driving style. If you spent £100 in fuel each month that's a total of £400 saved per year- think about it!
From a mate who's a driving instructor
