Folks,
ALL avgas produced in Australia conforms to exactly the same ASTM standard as in US, and I would suggest that, after the Mobil fuel contamination of late 1999, very close attention is paid to QC by the remaining refiners.
There is NO difference between the octane ratings of 100LL and 100/130.
Perhaps somebody else would like to let the "LOP don't work" brigade know what 100/130 actually means.
Tootle pip!!