They are made to run on 95 ron. Our standard fuel is 97 aint it? So i would of thought that running normal pump fuel you will still be fine mate.

No expert so someone else may shed light on this.

I am getting about 24mpg with a mix of town and motorway driving. That was before the remap, its the same after the remap but that is because I have a few more 'foot to the floor' moments with the extra power. If I drive normally I am getting about 30 miles more per tank after the remap.

Best MPG I have had was a long motorway run. From Santa Pod to Liverpool at a steady 65/70mph and got 36 MPG.