Adelaide fuel prices, the week to 1 November 2026

1. U91 averaged 227.8 c/L in Adelaide in the week to 1 November 2026, down 4.2 c/L on the week before, and diesel averaged 273.5 c/L, down 5.3 c/L; across the rest of South Australia U91 averaged 243.7 c/L.

2. 227.8c/L

   U91 in Adelaide: 227.8 c/L, down 4.2 c/L on the week before.

3. 273.5c/L

   Diesel in Adelaide: 273.5 c/L, down 5.3 c/L on the week before.

4. 243.7c/L

   U91, rest of South Australia: 243.7 c/L, down 2.7 c/L on the week before.

5. 223.1c/L

   Wholesale unleaded (TGP): 223.1 c/L, down 0.7 c/L on the week before.

1. St Marys recorded the lowest average U91 price in Adelaide at 216.5 c/L across 2 stations, followed by Edwardstown at 217.3 c/L.

2. At the Adelaide terminal, wholesale unleaded fell 0.7 c/L to 223.1 c/L, while wholesale diesel rose 4.3 c/L to 266 c/L.

3. Since 1 July 2026, bowser prices across Adelaide have climbed 69.3 c/L for U91 and 94.4 c/L for diesel.

4. The forecast made on 4 November 2026 estimates Adelaide U91 will average 226.4 c/L on 11 November 2026 as the cycle approaches a trough.

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Cents a litre, from the first daily average on or just after each date to 1 November. A date before our records began is left out. Excise dates: the excise change on 3 August 2026: ATO: Excise duty rates for fuel and petroleum products.

Wholesale unleaded and diesel are the terminal gate prices fuel companies pay at the Adelaide terminal, before freight, the retailer’s costs and margin. Weekly averages. Terminal gate prices: Australian Institute of Petroleum.

Each common date counts once. Retail is the mean of the saved daily capital averages, not the station-day-weighted headline mean. TGP uses the same dates and carries the last published value for at most six subsequent calendar days. Retail prices can already include carried station prices. Means and spreads are rounded separately. The gross spread is not profit or a causal explanation. Retail carry limit: 30 days. Unmatched dates are excluded; common days are not a station or sales coverage percentage.

Worked out the same way as the table above.

The listed count is the inventory used at build time, not a historical census of every operating station. One station selling two fuels on one day contributes two station–fuel–days. Fuel-specific counts must not be added to obtain a distinct station total. Distinct stations with eligible input prices, before the daily publication minimum. Calendar days describe the window, not new observations. A dash means the saved edition does not supply that count.