Don't get pumped.
As of 21 July 2026, the cheapest Premium Unleaded 98 in New South Wales is 182.7c per litre at Costco, Boolaroo — versus the New South Wales average of 204.2c (0.8c above the national average of 203.4c). Across 1,700 stations, Premium Unleaded 98 ranges from 182.7c to 287.9c, so filling a 50-litre tank at the cheapest station saves about $10.75 over the state average. Over the past week the NSW average has risen 17.1c.
Compare Premium Unleaded 98 across 1,700 stations in New South Wales. Updated 08:53 PM, 21 Jul 2026.
Over the past 87 days, Premium Unleaded 98 in New South Wales has averaged 204.3c per litre, peaking at 216.9c on 27 May and bottoming out at 183.7c on 1 July — a range of 33.2c. Over the past week the NSW average has risen 17.1c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $16.60.
| Month | Average Premium Unleaded 98 |
|---|---|
| April 2026 | 213.3c |
| May 2026 | 211.1c |
| June 2026 | 195.7c |
| July 2026 | 193.0c |
| Brand | Avg Price | Stations |
|---|---|---|
| Costco | 182.7c | 4 |
| U-Go | 191.3c | 9 |
| Speedway | 192.1c | 42 |
| Pearl Energy | 193.8c | 39 |
| Budget | 195.6c | 24 |
| Ultra Petroleum | 195.7c | 12 |
| Arko Energy | 195.9c | 6 |
| United | 199.0c | 53 |
The cheapest Premium Unleaded 98 price in New South Wales right now is 182.7c per litre, across 1,700 stations tracked. The cheapest suburb right now is Londonderry at a 185.5c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 204.2c saves $10.75. 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 Premium Unleaded 98 is 204.2c per litre — 0.8c above the national average of 203.4c. Prices at individual stations range from 182.7c to 287.9c, a spread of 105.2c that shows how much shopping around can save. Over the past week the NSW average has risen 17.1c. Petrolmate computes this average from every station reporting Premium Unleaded 98 in New South Wales via the official government price feed, refreshed twice daily.
Costco is currently the cheapest brand for Premium Unleaded 98 in New South Wales at 182.7c per litre average across 4 stations. The gap between the cheapest brand (Costco, 182.7c) and the priciest in our list (Metro, 200.8c) is 18.1c per litre — about $9.05 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 87 days, Premium Unleaded 98 in New South Wales has averaged 204.3c per litre, peaking at 216.9c on 27 May and bottoming out at 183.7c on 1 July — a range of 33.2c. Over the past week the NSW average has risen 17.1c. 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.