Don't get pumped.
As of 5 September 2026, the cheapest Diesel in New South Wales is 219.5c per litre at Independent, Bigga — versus the New South Wales average of 255.0c (1.3c below the national average of 256.3c). Across 1,252 stations, Diesel ranges from 219.5c to 336.0c, so filling a 50-litre tank at the cheapest station saves about $17.75 over the state average. Over the past week the NSW average has risen 2.2c.
Compare Diesel across 1,252 stations in New South Wales. Updated 01:18 PM, 05 Sep 2026.
Over the past 90 days, Diesel in New South Wales has averaged 221.7c per litre, peaking at 254.9c on 29 August and bottoming out at 195.6c on 14 July — a range of 59.3c. Over the past week the NSW average has risen 2.2c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $29.65.
| Month | Average Diesel |
|---|---|
| April 2026 | 266.1c |
| May 2026 | 239.2c |
| June 2026 | 212.3c |
| July 2026 | 210.0c |
| August 2026 | 249.8c |
| Brand | Avg Price | Stations |
|---|---|---|
| Speedway | 243.0c | 41 |
| Pearl Energy | 243.5c | 40 |
| Ultra Petroleum | 245.4c | 10 |
| Metro | 246.4c | 43 |
| Powerfuel | 246.6c | 4 |
| Exxon | 246.8c | 3 |
| Budget | 246.9c | 9 |
| Enhance | 248.8c | 9 |
The cheapest Diesel price in New South Wales right now is 219.5c per litre, across 1,252 stations tracked. The cheapest suburb right now is Bigga at a 219.5c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 255.0c saves $17.75. 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 New South Wales average for Diesel is 255.0c per litre — 1.3c below the national average of 256.3c. Prices at individual stations range from 219.5c to 336.0c, a spread of 116.5c that shows how much shopping around can save. Over the past week the NSW average has risen 2.2c. Petrolmate computes this average from every station reporting Diesel in New South Wales via the official government price feed, refreshed twice daily.
Speedway is currently the cheapest brand for Diesel in New South Wales at 243.0c per litre average across 41 stations. The gap between the cheapest brand (Speedway, 243.0c) and the priciest in our list (Ampol Breeze, 250.7c) is 7.7c per litre — about $3.85 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, Diesel in New South Wales has averaged 221.7c per litre, peaking at 254.9c on 29 August and bottoming out at 195.6c on 14 July — a range of 59.3c. Over the past week the NSW average has risen 2.2c. Monthly averages for the past half-year are published in the table on this page. All figures come from official New South Wales government price reporting, aggregated daily by Petrolmate.