Just remember 99% of the population who don't take note of these things will just continue filling their tanks with the default 95RON (now E10) fuel they always have. They will go about their business unaware anything has changed. There's nothing to worry about, your car will run perfectly fine. Only very old cars, before the days of fuel injected engines (much older than our Mk1 Jazz -which is essentially still a modern car) will need to take note. Those driving cars old enough to be affected will be car enthusiasts of some sort and will likely be aware if they need to do anything.
