no, you are correct. they both have slightly different ethanol content and other additives. but are made from the same crude stock, so there really is very little difference.
A lot of people slate supermarket fuel with no reason. I have worked in Oil & gas for 9 years... all super market fuel is produced by the big brand refineries (Shell, Valero, Murco, Conoco Philips etc)
Obviously you get the best performance from running the RON rating that your engine is designed for, but people who say 'I only use V power'.....
I have never tried V Power in mine, mainly run on 95 octane with every 4th fill up being Sainsburys Premium or Momentum.
Does V Power really make that much difference?
When I had my Cupra 280, it only got V Power. Had to use a lower grade once when the garage was shut and the difference was very noticeable. My Golf R has only ever had V Power from new and it runs like a dream.
That's all I've used since buying my car new apart from one occasion when they didn't have any - had to use ordinary fuel and noticed the difference straight away. Wouldn't touch supermarket 95 with a 10 foot barge pole!After reading the thread, thought I would give V Power a try. Usually use supermarket 95 Ron or Tesco Momentum.
Filled up Thursday, so far no difference in economy but it does feel smoother pulling away.
Mind you, £5 more for 50 litres than Momentum.
Only 150 miles so far, will see how it goes.