Costco fuel & petrol prices in NSW
Costco fuel in New South Wales averages 226.7c a litre for E10 today (31 October 2026), the same price at every station.
Marsden Park, Casula and Lidcombe are in Sydney; Boolaroo is on Lake Macquarie, near Newcastle.
- E10 avg
- 226.7c▲ +2.0c
- Premium 98 avg
- 252.7c▲ +2.5c
- Diesel avg
- 268.7c▲ +2.5c
- Stations reporting
- 4
Updated 31 October 2026 · Avg of 4 stations · cents per litre · ▲▼ change since the previous day
Costco fuel prices in New South Wales today
Cheapest first, cents per litre. Tap a station for its 30-day history and opening hours.
| Rank | Station | E10 | Premium 98 | Diesel |
|---|---|---|---|---|
| 1 | Costco Boolaroo (Lake Macquarie, Newcastle) | 226.7c | 252.7c | 268.7c |
| 1 | Costco Casula (Crossroads) | 226.7c | 252.7c | 268.7c |
| 1 | Costco Lidcombe (Auburn) | 226.7c | 252.7c | 268.7c |
| 1 | Costco Marsden Park | 226.7c | 252.7c | 268.7c |
Costco fuel in New South Wales today
Every one of them posts the same E10 price today, 226.7c.
Costco E10 prices in New South Wales have held roughly flat over the past month.
The furthest any single station moved was Boolaroo, down 3.0c.
- vs the Australian E10 average
- in line, at 225.6c
- Diesel
- sold at all 4 stations
Average Costco fuel price in New South Wales
Last 30 days · cents per litreE10: 225.2c on 2 Oct to 226.7c on 31 Oct, low 224.7c, high 231.7c. Premium 98: 246.9c on 2 Oct to 252.7c on 31 Oct, low 246.9c, high 256.2c. Diesel: 271.2c on 2 Oct to 268.7c on 31 Oct, low 266.2c, high 272.9c.
More Costco fuel guides
- Costco fuel opening hours · Every station, open now
- Costco diesel price today · Every station, cheapest first
- Which Costcos have fuel · Map of every station
- Costco fuel near me · By postcode or suburb
Costco fuel in New South Wales: common questions
Where is the cheapest Costco fuel in New South Wales today?
Nowhere in particular — all 4 Costco fuel stations in New South Wales post the same E10 price, 226.7c, as of the 31 October 2026 reading.
How many Costco fuel stations are there in New South Wales?
New South Wales has 4 Costco warehouses with a fuel station, and all of them reported a price in the last 30 days.
Which Costco fuel stations in New South Wales sell diesel?
Diesel is sold at all 4 stations in New South Wales. Each station page lists the grades that warehouse has actually posted a price for in the last 30 days.
Is Costco fuel cheaper in New South Wales than in Australia?
Not meaningfully: the average Costco E10 price in New South Wales is 226.7c, level with the Australian E10 average of 225.6c as of the 31 October 2026 reading.
Are Costco fuel prices in New South Wales going up or down?
Neither, really: the average Costco E10 price in New South Wales has held roughly flat over the past month, at 227.5c then and 226.7c as of the 31 October 2026 reading.