Sydney Petrol Prices — Week Ending 18 October 2026
Diesel: 277.5 c/L · National U91 average: 242.1 c/L
AIP weekly report · week ending 18 October 2026- Sydney U91 rose 1.8 c/L from the week ending 11 October 2026 (239.5 c/L).
- At 241.3 c/L, Sydney was the 5th dearest of the 8 capitals for U91, 0.8 c/L lower than the national average (242.1 c/L).
- That is 75.8 c/L higher than in the week ending 12 July 2026 (165.5 c/L), the earliest week on record here.
- Diesel averaged 277.5 c/L, 36.2 c/L more than U91; it fell 2.3 c/L on the week before.
Petrol prices in Sydney move through a pronounced cycle, so the day you fill up can matter as much as where. Prices tend to climb quickly to a peak, then drift down over the following stretch before the next rise, which means filling near the bottom of the cycle can make a real difference.
To see where the cycle sits right now, FuelCheck, a NSW Government service, publishes live prices from stations across the state. It's the quickest way to check what's actually on the board near you before you commit to a tank.
| City | U91 (c/L) | Diesel (c/L) |
|---|---|---|
| Sydney | 241.3 | 277.5 |
| Melbourne | 241.7 | 279.0 |
| Brisbane | 239.9 | 281.4 |
| Perth | 238.4 | 270.0 |
| Adelaide | 236.8 | 283.0 |
| Hobart | 250.0 | 282.5 |
| Canberra | 246.3 | 287.3 |
| Darwin | 249.0 | 288.7 |
| National average | 242.1 | 280.7 |
Sydney week by week
| Week ending | U91 | Change | Diesel | Change |
|---|---|---|---|---|
| 18 October 2026 | 241.3 | +1.8 c/L | 277.5 | −2.3 c/L |
| 11 October 2026 | 239.5 | +2.5 c/L | 279.8 | −1.3 c/L |
| 4 October 2026 | 237.0 | −1.2 c/L | 281.1 | −2.2 c/L |
| 27 September 2026 | 238.2 | +10.2 c/L | 283.3 | +11.2 c/L |
| 20 September 2026 | 228.0 | +18.2 c/L | 272.1 | +17.6 c/L |
| 13 September 2026 | 209.8 | — | 254.5 | +5.8 c/L |
| 6 September 2026 | — | — | 248.7 | +0.7 c/L |
| 30 August 2026 | 202.5 | +4.1 c/L | 248.0 | +5.1 c/L |
| Change is against the week before and is shown only where both weeks' reports exist. A dash means AIP's report for that fuel and week could not be recovered, so the week is left blank rather than estimated. Weeks with no report at all are not listed. | ||||
What does a drive cost at Sydney prices?
Default price: Sydney average U91, week ending 18 October 2026. Fuel only — tolls, wear and rest stops not included.
Frequently asked questions
- What was the average petrol price in Sydney in the week ending 18 October 2026?
- Regular unleaded (U91) averaged 241.3 c/L across Sydney for the week ending 18 October 2026, and diesel averaged 277.5 c/L. The national average was 242.1 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; the figures here are the week ending 18 October 2026. AIP publishes each report on the Monday after the week it covers.
Trip costs from and to Sydney
- Melbourne → Sydney
- Sydney → Brisbane
- Brisbane → Sydney
- Canberra → Sydney
- Sydney → Newcastle
- Gold Coast → Sydney
- Australian Institute of Petroleum — weekly petrol prices report, week ending 18 October 2026verified
- Australian Institute of Petroleum — weekly diesel prices report, week ending 18 October 2026verified
- ACCC weekly fuel price monitoringcross-checked
AIP weekly averages for the week ending 18 October 2026. Individual stations vary with the price cycle. NSW drivers can check live station prices via the state's fuel price service.