Re: Fuel octane changes
i use 98 octane ultimate. it's good fuel, you can actually feel the difference in the car.
don't know about the xr8 though.
2003 BA FUTURA. Harvest Green, Lowered with Kings springs and Koni shocks, 18" GT-P mag wheels, XR front bar headlights and grill, XR rear spoiler, Fairmont Bootlid trim, XR6T snorkle, Typhoon second CAI, K&N filter, Pacemaker extractors with Herrod cat back, 3.73 LSD & CAPA FLASH with custom tune. ALSO 12" dual voice coil kicker, JL 5x7's and 1800W of amps!