I was advised to put only E5/super in the 1996 Honda Del Sol, which costs £1.60/litre as against about £1.45/l for the homeopathic E10 stuff.
No big deal really. I get at least 10% more miles per gallon out of the E5/super than I used to do out of the E5/normal (which is no longer available at local petrol stations), and an unknown amount more than if I used E10 (which I don't dare), so in terms of pence-per-mile, it comes out about the same.
I suspect that the whole thing is just greenwashing by the car manufacturers to trick us into buying new cars.
Bonus conspiracy theory - the fuel shortages/panic buying that we had at the end of September was triggered by the switch from E5 to E10.
Debate Magazine
