Yes, my man math theory allows that if I am getting over 12% better fuel economy, then paying 20% more for the fuel and perhaps some more acceleration & engine cleaning (for a mere 8%) all is good in my world!
For me it’s around an 8% difference in cost between e10 and e5, I can see at the price you’re paying in your area you like your Man Math theory. You just keep on doing you though eh.
..and just to put the cat among the pigeons using Terry's "cheapest fuel map" in the first post - Shell comes out around 40p cheaper than the rest near me! * (Ottershaw) *these emojis are...