I would have thought the most natural thing to do for those that have any concerns over E10 petrol (which will be readily available) would be to alternative fill ups between E10 and super unleaded. And if storing over winter make sure it's filled with super unleaded to reduce the potential water separation whilst in storage. I never unless going on a long journey allow my tank to go much below half full , so alternating petrol types will in theory give me something equivalent to combined E5 petrol (assuming super leaded has no E in it). The big unknown will be how long super unleaded will continue to be readily available and as I understand it the Government's intentions with regard to increasing beyond E10 to force petrol cars off the road.
Last edited by JohnHarris; 20/07/21 08:18 AM.
