Hi Guys,

I am not trying to start an argument about the best fuels or anything, but here are some things I have noticed. BTW - I have a 4 motion Bora with Sports Exhaust and K&N Filter - nothing else modded engine wise...

I used to use Shell 95RON because my closest servo sold it and they take Coles dockets I noticed my car hesitating a little under light acceleration even when it was warm - only when lightly accelerating. I spoke to my mechanic who is quite experienced and he said to try 98RON petrol and see if I notice any difference - he has a Turbo'd old Subaru - (a classic sleeper) and he reckons BP ultimate is the best...

So I get a full tank of the best BP stuff... first time I have ever paid $100 to fill my car. It doesn't hesitate any more but where I used to get around 10L/100 on my average fuel monitor thing with 95RON it rarely gets under 12 and often closer to 13L/100... why would that be?

After 2 full tanks and numerous checks for different trips, I tried Caltex Vortex 98 a week ago. Straight to 9-10L/100 and 8L/100 on the highway... and no hestation

Any ideas? Or similar situations?

Here's my Car... I have it lowered on Eibachs, Whiteline Swaybar - Rear, CAI, Sports exhaust, my controversial Subwoofers, a Double DIN Pioneer headunit, RS4 REP Wheels, Diesel Geek Sump guard, Angel Eyes Headlights and Depot Rear lights, debadged boot and Grille and Boser Bonnet in bare primer stage... not everyone's cup-of -tea, but my Son (15) and I like working together on it...