Petrol usage

[qashqai]

Can anyone help, I have a 1.3 nissan qashqai n connecta, It says I am getting 42.6 mile to the gallon, I have done a 14 mile round journey and the petrol gauge moved 3 times on that short journey, is this normal or is it unusual? I am definitely not getting what it says I am getting, can anyone advise me with any help with this please?

[Trevor]

The MPG read out is based on average driving styles, e.g. hard acceleration, hills (up or down) and can fluctuate wildly.
Over a set period of time it will settle down to a more precise average rather than bouncing up and down