If this was stuff I had read online I would agree with you col, but on more than one occasion I have spoken to mechanics when I have had issues with different cars and they said it was partly due to being run on supermarket fuels. Granted these were not performance cars so the comparison they made was standard 95 ron but they said momentum had the same differences
Like I mentioned before, hundreds if not thousands of zeds have been run on standard 95 ron, and no difference in performance or engine problems noticed. That doesn’t mean they should continue to be run on 95 ron. Problems can arise, but won’t arise with every case