We had a 98 Ron sube (b4) for a long time. We carried a couple of bottles of octane booster in the boot. Only needed it a couple of times.
GBC
So were you filling with normal 91 + booster?
We run our Forester on 91 round town, but switch to 98 when taking the CT away. Even on the Gold Coast, straight 95 appears to be hard to find - the servo's round us all show their 95 as E10 ethanol, which I don't want to put in the tank, thanks very much!
Our last trip out to Warwick, stopped at servo's at top of Cunningham's Gap, then at Aratula on the way back & they both had 91 & 98 on the bowser.