Please apply for the international license. Different Ozzie states and different policeman have different SOP/ awareness. Also Asian sensitivity is much higher nowadays so police tend to be no nonsense.

You do not want to be charged, drag to police station or get into accident and your insurance is not valid. Also there are unique traffic rules in Oz esp Melb city such as hook turns due to trams.

Get the International Licence/ Permit from UTC.

Pls triple check against the specific road transport department for the specific state you are visiting. Example, VicRoads for Melbourne, Victoria.

If you want to rely on free advice (99% will turnout to be the most expensive and painful advice), please verify first.

Also call or email the car rental company in advance to separately check.