Don't get pumped.
As of 9 September 2026, the cheapest Premium Unleaded 95 in South Australia is 207.5c per litre at APCO, Mount Gambier — versus the South Australia average of 225.9c (2.1c below the national average of 228.0c). Across 385 stations, Premium Unleaded 95 ranges from 207.5c to 350.0c, so filling a 50-litre tank at the cheapest station saves about $9.20 over the state average. Over the past week the SA average has risen 8.8c.
Compare Premium Unleaded 95 across 385 stations in South Australia. Updated 09:27 PM, 09 Sep 2026.
Over the past 90 days, Premium Unleaded 95 in South Australia has averaged 193.6c per litre, peaking at 222.0c on 6 September and bottoming out at 169.2c on 1 July — a range of 52.8c. Over the past week the SA average has risen 8.8c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $26.40.
| Month | Average Premium Unleaded 95 |
|---|---|
| April 2026 | 198.9c |
| May 2026 | 196.7c |
| June 2026 | 179.9c |
| July 2026 | 183.2c |
| August 2026 | 220.3c |
The cheapest Premium Unleaded 95 price in South Australia right now is 207.5c per litre, across 385 stations tracked. The cheapest suburb right now is Gilles Plains at a 212.5c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 225.9c saves $9.20. See the live cheapest-stations list on this page for the exact station, address and suburb. Prices update twice daily from the official state government feed, so the cheapest station can change between the morning and afternoon updates — check again before you drive.
The current South Australia average for Premium Unleaded 95 is 225.9c per litre — 2.1c below the national average of 228.0c. Prices at individual stations range from 207.5c to 350.0c, a spread of 142.5c that shows how much shopping around can save. Over the past week the SA average has risen 8.8c. Petrolmate computes this average from every station reporting Premium Unleaded 95 in South Australia via the official government price feed, refreshed twice daily.
U-Go is currently the cheapest brand for Premium Unleaded 95 in South Australia at 216.1c per litre average across 4 stations. The gap between the cheapest brand (U-Go, 216.1c) and the priciest in our list (Reddy Express, 227.7c) is 11.6c per litre — about $5.80 per 50-litre tank. Brand averages are recalculated twice daily from official price data, so the cheapest brand can change with the price cycle.
Over the past 90 days, Premium Unleaded 95 in South Australia has averaged 193.6c per litre, peaking at 222.0c on 6 September and bottoming out at 169.2c on 1 July — a range of 52.8c. Over the past week the SA average has risen 8.8c. Monthly averages for the past half-year are published in the table on this page. All figures come from official South Australia government price reporting, aggregated daily by Petrolmate.