Why fuel prices change: retail resets, wholesale moves, and what Melbourne drivers see
Why fuel prices change is both a global story and a hyperlocal one. Australian bowser prices reflect international refined product markets and exchange rates, plus taxes and retail competition — and in Melbourne, unleaded also shows the familiar retail cycle pattern.Three layers: global, wholesale, retail
1. Global and regional refined product pricing influences what importers pay.
2. Wholesale and terminal economics shape what retailers can buy product for — not always one-for-one with what you see the same hour.
3. Retail competition and cycle timing decide what you pay at a specific station on a specific day.
For a careful walkthrough, read How petrol prices work in Australia.
Why Melbourne still feels volatile
Even when wholesale is relatively calm, Melbourne unleaded can look “jumpy” because retailers run discounting and resets as a competitive rhythm. Diesel can feel steadier in some weeks but still varies by corridor.
What you can control
You cannot set global markets from your phone — but you can:
- compare two to three realistic stations,
- align fill-ups with cycle literacy when you have flexibility,
- choose routes and suburbs with stronger competition when practical.