what map have you got?
is it generic or custom?
if custom and had super in the car when done then you should use super as its mapped on this basis.
if generic then you can use normal unleaded, but again it would be nice to know which map etc as it may have been set up on the assumption you use super.
PS the manual does say you can use normal unleaded, many on here will swear otherwise, but you are correct that you can use premium. however it would appear to say you may expereience a slightly lower performance. - i take from this that 95 ron is ok, but the figures they use are based on using super.