Both times i've cancelled my Sky sports i've had Sky call me and offer me 12 months half price Sports package, with no contract obligation to keep it 12 months, worth thinking about if you have it. I did accept it last time but i've just cancelled again and refused it this time, can do without.
It is noticeable as i was forced to use 95 before, runs a little lumpy and returns about 5-10% less mpg. Top end of rev range is where it felt most different performance wise. I would use it solely for the mpg increase even if i didn't notice the feeling of power loss though.
All depends whether your ECU can detect engine knock and advance or retard ignition accordingly. Generally as these are high performance fuels you would only really use them on engines that require it by manufacturer or have been re-mapped to make full advantage.
My engine is designed to use...
The bolded part makes no sense to me. yes the ECU has been mapped to 98+ RON fuel, and will run on 95 by detecting knock and retarding the ignition / timing. the fuel and map work together.
Sounds like your remapping simply adjusted air/ fuel ratios to be running rich or lean?
I wonder if the winner would be alllowed to forfeit the prize and get 2nd place prize instead, i know that's what i'd ask for! I filled in the survey, was pretty long and painful!
In your typical family hatchback, yes. In turbo cars the difference is much larger, if your ECU can recognise the difference in fuel and adjust the timing/ ignition accordingly, then premium fuel is worth every penny.
Oh and that must have been before 5th gear re-did the test with 3 different...
A better question, i feel, would be could someone get to single figure H/cap in the same time frame/ circumstances. scratch is just silly and not ever going to happen