Don't get pumped.
As of 3 September 2026, the cheapest Diesel in South Australia is 234.9c per litre at Independent, Maitland — versus the South Australia average of 256.5c (1.4c above the national average of 255.1c). Across 386 stations, Diesel ranges from 234.9c to 350.0c, so filling a 50-litre tank at the cheapest station saves about $10.80 over the state average. Over the past week the SA average has risen 20.9c.
Compare Diesel across 386 stations in South Australia. Updated 07:16 AM, 03 Sep 2026.
Over the past 89 days, Diesel in South Australia has averaged 218.6c per litre, peaking at 255.7c on 29 August and bottoming out at 193.3c on 8 July — a range of 62.4c. Over the past week the SA average has risen 20.9c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $31.20.
| Month | Average Diesel |
|---|---|
| April 2026 | 271.2c |
| May 2026 | 246.5c |
| June 2026 | 209.5c |
| July 2026 | 203.9c |
| August 2026 | 250.6c |
The cheapest Diesel price in South Australia right now is 234.9c per litre, across 386 stations tracked. The cheapest suburb right now is Blair Athol at a 239.5c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 256.5c saves $10.80. 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 Diesel is 256.5c per litre — 1.4c above the national average of 255.1c. Prices at individual stations range from 234.9c to 350.0c, a spread of 115.1c that shows how much shopping around can save. Over the past week the SA average has risen 20.9c. 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 242.3c per litre average across 10 stations. The gap between the cheapest brand (Solo, 242.3c) and the priciest in our list (OTR, 256.6c) is 14.3c per litre — about $7.15 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 89 days, Diesel in South Australia has averaged 218.6c per litre, peaking at 255.7c on 29 August and bottoming out at 193.3c on 8 July — a range of 62.4c. Over the past week the SA average has risen 20.9c. 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.