Don't get pumped.
As of 21 July 2026, the cheapest Ethanol 85% in South Australia is 239.9c per litre at United, Adelaide Airport — versus the South Australia average of 255.5c (10.4c above the national average of 245.1c). Across 14 stations, Ethanol 85% ranges from 239.9c to 349.0c, so filling a 50-litre tank at the cheapest station saves about $7.80 over the state average.
Compare Ethanol 85% across 14 stations in South Australia. Updated 08:54 AM, 21 Jul 2026.
| Brand | Avg Price | Stations |
|---|---|---|
| United | 239.9c | 10 |
The cheapest Ethanol 85% price in South Australia right now is 239.9c per litre, across 14 stations tracked. The cheapest suburb right now is Rosewater at a 239.9c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 255.5c saves $7.80. 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 85% is 255.5c per litre — 10.4c above the national average of 245.1c. Prices at individual stations range from 239.9c to 349.0c, a spread of 109.1c that shows how much shopping around can save. Petrolmate computes this average from every station reporting Ethanol 85% in South Australia via the official government price feed, refreshed twice daily.
United is currently the cheapest brand for Ethanol 85% in South Australia at 239.9c per litre average across 10 stations.