Don't get pumped.
As of 22 July 2026, the cheapest Ethanol 10% in South Australia is 165.5c per litre at Liberty, Seaford — versus the South Australia average of 171.3c (6.1c below the national average of 177.4c). Across 57 stations, Ethanol 10% ranges from 165.5c to 185.5c, so filling a 50-litre tank at the cheapest station saves about $2.90 over the state average. Over the past week the SA average has risen 18.0c.
Compare Ethanol 10% across 57 stations in South Australia. Updated 07:39 PM, 22 Jul 2026.
Over the past 88 days, Ethanol 10% in South Australia has averaged 167.1c per litre, peaking at 178.7c on 25 April and bottoming out at 148.0c on 1 July — a range of 30.7c. Over the past week the SA average has risen 18.0c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $15.35.
| Month | Average Ethanol 10% |
|---|---|
| April 2026 | 176.9c |
| May 2026 | 173.8c |
| June 2026 | 159.3c |
| July 2026 | 158.1c |
The cheapest Ethanol 10% price in South Australia right now is 165.5c per litre, across 57 stations tracked. The cheapest suburb right now is Barmera at a 167.7c average across 3 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 171.3c saves $2.90. 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 Ethanol 10% is 171.3c per litre — 6.1c below the national average of 177.4c. Prices at individual stations range from 165.5c to 185.5c, a spread of 20.0c that shows how much shopping around can save. Over the past week the SA average has risen 18.0c. Petrolmate computes this average from every station reporting Ethanol 10% in South Australia via the official government price feed, refreshed twice daily.
United is currently the cheapest brand for Ethanol 10% in South Australia at 170.3c per litre average across 28 stations. The gap between the cheapest brand (United, 170.3c) and the priciest in our list (Solo, 171.7c) is 1.4c per litre — about $0.70 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 88 days, Ethanol 10% in South Australia has averaged 167.1c per litre, peaking at 178.7c on 25 April and bottoming out at 148.0c on 1 July — a range of 30.7c. Over the past week the SA average has risen 18.0c. 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.