Just read a FBHVC (Federation of British Historic Vehicle Clubs) release, relative to classic car use in the UK. This could also possibly be relative to Vauxhall Omegas....
The Dept of Transport are looking to legislate the introduction of E10 fuel (10% ethanol content) in September 2021, which will become the standard for unleaded fuel in the UK, but continuing to make the current Super Unleaded 97+ octane fuels renamed as a Super E5 'Protection' grade fuel available (with E5 ethanol content as opposed to E10) for older and classic vehicles, no doubt at a premium cost. Garages that currently sell 95 and Super will have to provide both fuels, but with exemptions in remote areas such the Highlands to continue selling E5 95 octane. They are proposing to continue the 'Protection' grade for at least 5 years, but no doubt it will continue for longer due to the numbers of older and classic vehicles on the road.
There is a link to a Gov. website to check which vehicles are compatible with the E10 fuels - apparently the only Vauxhalls listed as NOT compatible being (quote) 'models with the 2.2 litre direct injection petrol engine, motor code Z22YH (Vectra, Signum and Zafira)'.
So, theoretically, the Omega should be able to run on E10, but if the Protection E5 grade is available locally, depending on the cost, I will continue to use that in my Omegas. Ethanol is horrible stuff in petrol, affecting rubber and various metal components in fuel systems, so the more I can avoid its use in mine, the better.
Another 'under the radar' way to get rid of older cars.
In 2000, they promised the contiuing supply of leaded fuel for classic car owners, albeit at a premium price, but that was relatively short lived, and it soon disappeared from forecourts. Dispite additives, there has no real substitute for unleaded fuel, and the same could happen down the line with E5.....