E10 fuel to replace standard

[tintin]

Originally Posted by ulfilias

I do wonder about the Economy factor.....And IF Super is now far more worthwhile???

Better octane and less Ethanol, for a few pence more a litre - I'm sure someone could do the maths and it wouldn't overly surprise me if Super actually came out on top here as being actually cheaper

It's going to vary a bit where you shop and what the difference is, but on that 2mpg, with say 10p difference

say 145 vs 155 and 4.5x for a gallon

20mpg at 145 x 4.5 = 652.5 > 32.6p a mile

22mpg at 155 x 4.5 = 697.5 > 31.7p a mile

15p and it's just a touch more expensive at 32.7p

Totally back of a fag packet maths there, but, as i guessed, Super is probably the better buy these days

Last time I filled up - which I must confess was more than a month ago - the price differential was a lot less than 10p. But then again that, as always, was with Tesco Momentum - and Tesco have traditionally not ripped off "premium" fuel buyers as much as Shell and BP

[Conan_the_Librarian]

I've done the math and I get 19 to 21 on pre E10 and 25 to 26 on super. Better response and it's kinder to your engine.

[HPsauce]

Originally Posted by Conan_the_Librarian

I've done the maths

So have I. It used to make sense (or at least balance out) to use 99RON long before the latest changes, it certainly does now.