Don't get pumped.
As of 19 October 2026, the cheapest Premium Diesel in Australian Capital Territory is 272.7c per litre at Costco, Canberra Airport ACT — versus the Australian Capital Territory average of 287.1c (5.0c above the national average of 282.1c). Across 44 stations, Premium Diesel ranges from 272.7c to 293.9c, so filling a 50-litre tank at the cheapest station saves about $7.20 over the state average. Over the past week the ACT average has fallen 8.7c.
Compare Premium Diesel across 44 stations in Australian Capital Territory. Updated 09:37 PM, 19 Oct 2026.
Over the past 80 days, Premium Diesel in Australian Capital Territory has averaged 272.4c per litre, peaking at 299.8c on 22 September and bottoming out at 241.5c on 31 July — a range of 58.3c. Over the past week the ACT average has fallen 8.7c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $29.15.
| Month | Average Premium Diesel |
|---|---|
| April 2026 | 271.8c |
| May 2026 | 259.4c |
| August 2026 | 255.4c |
| September 2026 | 271.1c |
| October 2026 | 294.8c |
| Brand | Avg Price | Stations |
|---|---|---|
| Metro | 284.2c | 6 |
| BP | 285.3c | 8 |
| Ampol Foodary | 288.1c | 9 |
| EG Ampol | 288.6c | 9 |
| 7-Eleven | 288.9c | 9 |
The cheapest Premium Diesel price in Australian Capital Territory right now is 272.7c per litre, across 44 stations tracked. The cheapest suburb right now is Canberra Airport ACT at a 276.5c average across 3 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 287.1c saves $7.20. 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 Australian Capital Territory average for Premium Diesel is 287.1c per litre — 5.0c above the national average of 282.1c. Prices at individual stations range from 272.7c to 293.9c, a spread of 21.2c that shows how much shopping around can save. Over the past week the ACT average has fallen 8.7c. Petrolmate computes this average from every station reporting Premium Diesel in Australian Capital Territory via the official government price feed, refreshed twice daily.
Metro is currently the cheapest brand for Premium Diesel in Australian Capital Territory at 284.2c per litre average across 6 stations. The gap between the cheapest brand (Metro, 284.2c) and the priciest in our list (7-Eleven, 288.9c) is 4.7c per litre — about $2.35 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 80 days, Premium Diesel in Australian Capital Territory has averaged 272.4c per litre, peaking at 299.8c on 22 September and bottoming out at 241.5c on 31 July — a range of 58.3c. Over the past week the ACT average has fallen 8.7c. Monthly averages for the past half-year are published in the table on this page. All figures come from official Australian Capital Territory government price reporting, aggregated daily by Petrolmate.