Costco diesel prices in Australia
- Diesel avg
- 265.7c▲ +1.1c
- Cheapest diesel
- 250.7c
- Over unleaded
- +42.0c
- Stations with diesel
- 14
Updated · Costco diesel in Australia · cents per litre · “Over unleaded” is the median gap to Unleaded 91 / E10 at the same station
Every one of the 14 Costco fuel stations in Australia sells diesel, and the average Costco diesel price today is 265.7c per litre. That is down 6.6c over the last 30 days. At the same Costco, diesel is a median 42.0c above Unleaded 91 / E10.
Every station below posted a diesel price in our latest daily reading.
Costco diesel prices at every Australian station
All 14 Costco fuel stations selling diesel, cheapest first. Today’s diesel runs from 250.7c at Costco Casuarina and Costco Perth Airport to 272.7c at Costco Canberra.
| Station | Diesel | Unleaded 91 / E10 | Gap |
|---|---|---|---|
| Costco Casuarina (Kwinana)WA | 250.7c | 214.7c | +36.0c |
| Costco Perth AirportWA | 250.7c | 214.7c | +36.0c |
| Costco Adelaide (Kilburn)SA | 262.7c | 220.7c | +42.0c |
| Costco Coomera (Gold Coast)QLD | 264.7c | 222.7c | +42.0c |
| Costco Ardeer (Deer Park)VIC | 268.7c | 228.7c | +40.0c |
| Costco Boolaroo (Lake Macquarie, Newcastle)NSW | 268.7c | 226.7c | +42.0c |
| Costco Bundamba (Ipswich)QLD | 268.7c | 224.7c | +44.0c |
| Costco Casula (Crossroads)NSW | 268.7c | 226.7c | +42.0c |
| Costco EppingVIC | 268.7c | 224.7c | +44.0c |
| Costco Lidcombe (Auburn)NSW | 268.7c | 226.7c | +42.0c |
| Costco Marsden ParkNSW | 268.7c | 226.7c | +42.0c |
| Costco MoorabbinVIC | 268.7c | 228.7c | +40.0c |
| Costco North LakesQLD | 268.7c | 224.7c | +44.0c |
| Costco Canberra (Majura Park)ACT | 272.7c | 232.7c | +40.0c |
Costco diesel by state and territory
- New South Wales · cheapest: Boolaroo, 268.7cavg 268.7c
- Queensland · cheapest: Coomera, 264.7cavg 267.4c
- Victoria · cheapest: Ardeer, 268.7cavg 268.7c
- Western Australia · cheapest: Casuarina, 250.7cavg 250.7c
- Australian Capital Territory · Costco Canberraavg 272.7c
- South Australia · Costco Adelaideavg 262.7c
Costco diesel near me
Enter your postcode or suburb to find the closest Costco diesel, with today’s price and whether the fuel station is open now.
Postcode and suburb locations from GeoNames, licensed under CC BY 4.0.
Average Costco diesel price in Australia
Last 30 days · cents per litreDiesel: 272.3c on 2 Oct to 265.7c on 31 Oct, low 264.6c, high 272.6c.
Costco diesel locations map
Tap a dot for the station and today’s diesel price.
Diesel is sold from the same pumps and on the same fuel station opening hours as unleaded. For unleaded and premium at every station, see Costco fuel prices today.
Costco diesel: common questions
Does Costco sell diesel in Australia?
Yes, at every one of its 14 Australian fuel stations. Each has its own diesel price, listed on this page.
How much is diesel at Costco today?
The average Costco diesel price in Australia is 265.7c per litre as of the 31 October 2026 reading, from 250.7c at Costco Casuarina and Costco Perth Airport to 272.7c at Costco Canberra.
Where is the cheapest Costco diesel today?
Costco Casuarina and Costco Perth Airport, at 250.7c per litre as of the 31 October 2026 reading. Prices change daily, so the table on this page ranks every station by today’s diesel price.
Is Costco diesel dearer than unleaded?
Yes, at the moment. At the same Costco, diesel is a median 42.0c per litre above Unleaded 91 / E10 as of the 31 October 2026 reading.
Do you need a Costco membership to buy fuel?
Yes — your Costco membership card has to be scanned at the pump before it will dispense fuel.
How do you pay for Costco fuel?
By card at the pump, after scanning your membership card; Costco fuel stations take no cash.