So I've been driving my 2011 Auris SR for a month now and I cant seem to get my fuel economy past 39mpg(6.1L/100km). I recently serviced it, I'm using good fuel, I'm not hammering the revs, I have good tyres and the psi is correct, I'm never carrying more than one passenger and no extra gear etc. I'm wondering am I expecting a bit too much from the car or is there anything else you lot would suggest? I'm doing about 150km on the motorway a day and I don't really go above 3k revs, just under 120kmph. I just can't seem to get any higher.
Any help is appreciated.