Originally Posted by RC4
i have a lot of mates run hi-performance cars ,cossies,m3,s and even gallardos on 98 supermarket fuels no issues of yet,KNOBHEAD

Gallardos probably have knock sensors I would suggest

I wonder if Shell who spend all that money sponsoring Ferrari & Ducati think its worth while putting the exact same stuff in Sainsbury's where they get no advertising at all?
Its not the same stuff. Same Octane (ish) but its 100% not the same composition.