[FWH]

Doing some research on the internet (where, as we know, everything is true) I have found some interesting things.

1) The motorcycle magazine Bike has in issue 6, 2007 tested 95 octane, 98 octane and V-power on bikes using a rolling road and not been able to measure a differance in power output. Their conclusion was however that it may help engines with very high compression.

2) The Swedish TV-ad for V-power ("Gives your engine adrenaline") was banned.
This was due to the fact that the results are not to be proved to be as "explosive" as portrayed in the ad.
In 18 av 31 cars tested, the accelaration improvement was 1,5% or less.
The best improvement was 5%.
I understand that these were Shell´s own tests but I am not sure.

3) Car24.se tested V-power in a Seat Ibiza Cupra -99 and subjectivly found the car to be more powerful after 100km driving.

4) A number of drivers of different cars do have a feeling that the car runs better, but also some notice nothing. This from a variety of forums.

Do however note, that their MAY be a long term affect of a cleaner engine above and beyond any immediate changes.