Adelaide Petrol Prices — Week Ending 12 July 2026
Diesel: 187.2 c/L · National U91 average: 169.4 c/L
AIP weekly report · week ending 12 July 2026Adelaide's prices tend to move in sharp cycles, climbing quickly to a peak and then falling away before the next rise. The swings can be steep, so the difference between a good day and a bad day to fill up is often significant.
South Australia runs a real-time fuel pricing scheme, so stations report their prices and you can check live figures across the city. Seeing where the cycle sits before you commit is the simplest way to avoid filling up at the top.
| City | U91 (c/L) | Diesel (c/L) |
|---|---|---|
| Sydney | 165.5 | 185.8 |
| Melbourne | 166.9 | 187.7 |
| Brisbane | 169.9 | 188.2 |
| Perth | 167.1 | 182.8 |
| Adelaide | 163.5 | 187.2 |
| Hobart | 173.4 | 199.1 |
| Canberra | 178.3 | 200.3 |
| Darwin | 173.1 | 188.9 |
| National average | 169.4 | 190.7 |
What does a drive cost at Adelaide prices?
Default price: Adelaide average U91, week ending 12 July 2026. Fuel only — tolls, wear and rest stops not included.
Frequently asked questions
- What is the average petrol price in Adelaide this week?
- Regular unleaded (U91) averaged 163.5 c/L across Adelaide for the week ending 12 July 2026, and diesel averaged 187.2 c/L. The national average was 169.4 c/L.
- Why is this a weekly average and not a live price?
- Pump prices cycle within a week, so any single moment misleads. The weekly average is the fair comparison line — it comes from the Australian Institute of Petroleum's weekly report and we refresh it every week.
Trip costs from Adelaide
- Australian Institute of Petroleum — weekly prices reportverified
- ACCC weekly fuel price monitoringcross-checked
Weekly average retail prices for the week ending 12 July 2026 — individual stations vary with the price cycle. SA drivers can check live station prices via the state's fuel price service.