Hi guys, here in Australia it is RON, and they have on the XF petrol cap that nothing under 95 ron should be used, which here is called Premium Unleaded, with no Ethanol. Ethanol is purchased from separate bowsers and is only just catching on over here, and i will NEVER put that in my beloved Crossfire! Out of interest petrol over here is currently $1.49c for premium unleaded and $1.39c for RON 91 unleaded petrol which the majority of cars use, with no ethanol, and that's per LITRE!