What if the sandwiches were £10 ? Would people be buying those without batting an eyelid? 🤔
Going off my last two fuel purchases, which were roughly the same. One with (Morrisons) E10, followed by some E5 V-Power.
I never ever fill my car completely, but the cost was the same on both occasions @ £44.00 (because, contactless limit). However, the price difference between the 2 fuels was huge at around 20p/L.
The Morrisons petrol was somewhere around the low £1.30s and the V-Power cost me £1.53.9/L. Even comparing like for like (Shell), the price premium for V-Power is still 15p/L, meaning I got around 3L of fuel less for my £44. On a full tankful, that would be somewhere around £10 extra if choosing V-Power.
The difference in MPG would need to be huge to offset that cost. In my experience, the economy does actually improve on the higher octane fuels, but only slightly. Nowhere near enough to make up the difference.
I prefer how my car feels on the premium fuel, so I'll continue to buy it but I feel the cost difference is being downplayed a little bit (its only a coffee!).