I was just wondering whether it would be worth paying a bit extra for Optimax in my 1.2 because i read on the internet cars with engine management computers are able to gain more miles from Premium fuel as the computer can run it less rich or something? So basically would i get better MPG from using Optimax and if yes would it be worth paying the extra price for a bit of extra MPG? Thanks 
Not worth the extra outlay really just to get more MPG (I doubt you will see any extra anyway!) Best thing you can do is keep the tyres up to pressure, regular oil changes and smoother driving style.
Tesco gobbled £45 of my money for their rubbish fuel