But that is hardly fair, im pretty sure the new turbo could run on 87 if it was forced to but it wouldnt be to happy about it... imo 98 vs98 is fair keep the playing field level, 3 octane does make a diff in Euro/Ricer cars you should watch the 5th gear ep where they test it.
YouTube - 5thGear - High Octane, better? (Korean Subtitle)
here it is
Callan