Yeah, it is a higher octane rated fuel. See normal unleaded is rated at 91RON, Premium is 95. 98RON is as widely available as the rest. In WA it can be bought at BP, and is branded BP Ultimate, eastern states also have Caltex and others. Not sure baout South Australia, pretty sure there's BP over there with Ultimate. Every BP station has it anyway, so no problems.
See, Soarers are designed to run on 100RON fuel, which is what they have in Japan. Over here, 98 is the best you can get. Never put in anything less than 98 RON, or it will not be good for the engine in the long term. Once in a while should be fine, say if you can't get 98 coz there isn't any, but always put in 98 when available.
