is ok but alternate back to 'real' fuel to be sure all your seals are ok... u get slightly worse fuel econ and it seems alittle more powerful since its 95 instead of 92
unless youse using premium have got ignition/compression/valvetrain mods you're wasting your money...... the micra doesn't have a 'smart' brain to acknowledge premium fuel and shift ignition etc............
we have 100 octane here, but i never realised a difference between the normal (95 oc.) or the super (98 oc.)
my opinion if you don't have a turbo, the normal should be fine.