Don't get pumped.
As of 19 July 2026, the cheapest Diesel in South Australia is 189.9c per litre at Independent, Edithburgh — versus the South Australia average of 209.6c (2.6c below the national average of 212.2c). Across 407 stations, Diesel ranges from 189.9c to 325.0c, so filling a 50-litre tank at the cheapest station saves about $9.85 over the state average. Over the past week the SA average has risen 18.7c.
Compare Diesel across 407 stations in South Australia. Updated 08:50 PM, 19 Jul 2026.
Over the past 65 days, Diesel in South Australia has averaged 211.7c per litre, peaking at 241.2c on 15 May and bottoming out at 185.0c on 1 July — a range of 56.2c. Over the past week the SA average has risen 18.7c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $28.10.
| Month | Average Diesel |
|---|---|
| May 2026 | 232.4c |
| June 2026 | 209.5c |
| July 2026 | 193.4c |
The cheapest Diesel price in South Australia right now is 189.9c per litre, across 407 stations tracked. The cheapest suburb right now is Adelaide at a 193.9c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 209.6c saves $9.85. 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 Diesel is 209.6c per litre — 2.6c below the national average of 212.2c. Prices at individual stations range from 189.9c to 325.0c, a spread of 135.1c that shows how much shopping around can save. Over the past week the SA average has risen 18.7c. Petrolmate computes this average from every station reporting Diesel in South Australia via the official government price feed, refreshed twice daily.
Solo is currently the cheapest brand for Diesel in South Australia at 199.6c per litre average across 12 stations. The gap between the cheapest brand (Solo, 199.6c) and the priciest in our list (AM/PM, 208.9c) is 9.3c per litre — about $4.65 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 65 days, Diesel in South Australia has averaged 211.7c per litre, peaking at 241.2c on 15 May and bottoming out at 185.0c on 1 July — a range of 56.2c. Over the past week the SA average has risen 18.7c. 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.