Diesel prices fell again this week, but the summer road trip will still cost a lot more than it would have in February. The ACCC’s weekly fuel price monitoring report, published on 13 November 2026, puts average retail diesel across Sydney, Melbourne, Brisbane, Adelaide and Perth at 266.4 cents a litre on 11 November. That is down 9.4 cents in a week, but the five-city average is still 89.8 cents higher than on 20 February, around a week before the conflict in the Middle East escalated.
On a 100-litre fill at that five-city average, the gap between 20 February and 11 November adds up to about $90. This week’s fall saves about $9.40 on the same fill.
Where diesel sits now
The ACCC says retail diesel fell in every capital city over the week. Perth had the lowest average at 260.4 cents a litre and Canberra the highest at 280.6. Prices are still well below the peak: diesel across the five largest cities is 56.0 cents a litre cheaper than on 31 March, when prices were around their highest.
Outside the big cities it generally costs more. Across more than 190 regional towns the ACCC monitors, diesel averaged 276.0 cents a litre, down 6.5 cents on the week.
The towns where you will pay the most
Out in touring country, the numbers climb. These are average retail diesel prices on 11 November in towns on popular touring routes, with the rise since 20 February:
| Location | Diesel, 11 Nov (c/L) | Up since 20 Feb (c/L) |
|---|---|---|
| 5 largest cities | 266.4 | 89.8 |
| Mildura | 274.6 | 99.3 |
| Alice Springs | 284.1 | 93.6 |
| Broken Hill | 284.2 | 98.6 |
| Longreach | 290.1 | 94.3 |
| Broome | 306.9 | 100.7 |
| Tennant Creek | 307.9 | 109.5 |
| Coober Pedy | 338.1 | 113.4 |
Coober Pedy was the only town in our list where diesel went up this week, by 3.0 cents. At 338.1 cents, a 100-litre fill there costs about $78 more than in Perth. Broome, the end point of our Perth to Broome caravan trip, is just under 307 cents.
The ACCC warns that comparisons between regional towns “should be treated with caution”. Local supply, competition, sales volumes and distance all affect what a town pays.
How to keep the fuel bill down
The ACCC’s advice is to “shop around by using fuel price apps and websites to compare retail prices” before filling up. For a towing trip, that means planning fill-ups in the bigger regional centres where you can, and not running the tank low just before a remote stretch. Our tips for saving fuel while towing cover the driving side.
What happens next: the ACCC has been told to keep publishing these weekly reports until 31 March 2027, so expect a fresh report each week through summer. If you are budgeting for a long trip, our road trip cost breakdown shows the sums, but use this week’s prices rather than the older figures in it. Prices quoted are as of 11 November 2026.
Image: Bahnfrend via Wikimedia Commons (CC BY-SA 4.0).
