Costco fuel prices
Costco fuel is members-only — a Costco membership is required to fill up at the pump. The board price is usually among the cheapest around, but only members can buy it.
Tracked stations
14
States covered
6 states
Cheapest station
Costco Ardeer (Members only)
Updated
23 June 2026
Live price check
20.7c below the market averageCheapest now
across 14 Costco stations
Cheapest now
142.7
c/L
Brand avg
145.7 c/L
vs market
166.4 c/L
Stations
14
Cheapest first
Cheapest Costco stations right now
Sorted by current listed price. The top entry is usually the best deal right now — a single station can beat the brand average by several cents. Tap any row for grades, freshness and directions.
Costco Ardeer (Members only)
Cheapest740 Ballarat Road, Ardeer
142.7 c/L
-3.0 vs brand avg
Costco Casuarina
137 Market St
142.7 c/L
-3.0 vs brand avg
Costco Perth Airport
142 Dunreath Dr
142.7 c/L
-3.0 vs brand avg
Costco Kilburn
404-406 Churchill Road
143.7 c/L
-2.0 vs brand avg
Costco Auburn (Members only)
COSTCO 17-21 PARRAMATTA RD, LIDCOMBE
144.7 c/L
-1.0 vs brand avg
Costco Casula (Members only)
20 Parkersfarm Place, Casula
144.7 c/L
-1.0 vs brand avg
Showing 6 of 12 stations.
Live map
Costco stations on the live map
Colour-coded pins show the cheapest Costco servos near you — tap any pin for live prices, distance and directions.
Brand insights
How Costco fuel prices behave
The verdict on Costco: volatility, typical range and the best day to fill up — from the last 30 days of prices.
Price volatility
Median price
Typical range
Best day to fill
Price distribution across Costco stations
Costco vs other brands
How Costco compares to other brands
Average price across each brand's network. Use these as a rough guide — the cheapest servo near you usually beats a brand average, especially at the bottom of the cycle.
Market view
Costco by state
See how Costco prices and station counts vary by state before opening city or suburb pages.
| Area | Average | Cheapest | Stations |
|---|---|---|---|
| Australian Capital Territory | 154.7 c/L | 154.7 c/L | 1 |
| New South Wales | — | — | 4 |
| Queensland | — | — | 3 |
| South Australia | 143.7 c/L | 143.7 c/L | 1 |
| Victoria | 146.0 c/L | 142.7 c/L | 3 |
| Western Australia | 142.7 c/L | 142.7 c/L | 2 |
Cheapest cities
Costco in major cities
Where the Costco network is currently keenest. Delta is each city average against this brand's national average — a single station can still beat the brand avg by several cents.
Cheapest Costco areas
Cheapest Costco suburbs
If you already prefer Costco, these suburbs are where the network is currently most competitive.
Save even more
Stack loyalty savings on top of Costco
Board prices are before discounts. Pick the cards you actually hold to see what a supermarket docket or member rate knocks off a Costco fill.
Cards you hold
Tank size
Scan Flybuys at participating Ampol/Coles Express sites for ~4c/L off. Spend $30+ at Coles for a stackable fuel docket.
Per-litre rates and conditions change — always check the program for the current offer. Map prices are pump prices before discounts; apply your card or docket at the bowser for the final price.
Keep exploring
More Costco fuel prices
Drill into where Costco is keenest, see how it stacks up against other networks, or skip the brand debate and find the cheapest servo near you.
Common questions
Costco fuel questions
Yes — Costco fuel is members-only. You need a current Costco membership to fill up at the pump. The board price is usually among the cheapest Unleaded 91 in Australia, but only members can buy it, so weigh the membership cost against the saving if you don't already shop there.
Costco snapshot
Costco fuel prices across Australia
Today's prices
Costco fuel averages 145.7c/L across Australia, tracked at 14 stations. The cheapest Costco listed today is 142.7c/L at Costco Ardeer (Members only) — compare every nearby servo on the live map before you drive.
How it compares
Against the Australia market average of 166.4c/L, Costco runs 20.7c/L cheaper on average. Loyalty dockets and 4c-off vouchers shift what you actually pay, and brand averages move with the cycle, so compare other brands — no single network is always cheapest.
Timing beats loyalty
Brand averages are useful benchmarks, but a single servo can be several cents cheaper on any given day. The cheapest listed station right now is usually the best guide. Watch the price cycle — most markets swing several cents per litre over weeks. Open the live map or the cycle tool to time your fill.
Cheapest Costco areas
If you already prefer Costco, the network is currently most competitive in Ardeer (142.7c), Casuarina (142.7c) and Belmont (142.7c). These local pages show exact station lists and how each area compares to the brand average.
City snapshot
Costco prices vary across major cities — Melbourne (146.0c +0.3 vs brand), Perth (142.7c -3.0 vs brand) and Adelaide (143.7c -2.0 vs brand). Drill into any city page for suburb-level breakdowns and live station prices.
Where to find it
Costco coverage is strongest in Australian Capital Territory with 1 stations averaging 154.7c/L. Open a state to drill into city and suburb-level pricing.
Stack your discounts
Board prices are before discounts. If you carry supermarket dockets, 4c-off vouchers or a membership, factor them in on the map — the cheapest Costco servo combined with a good docket often beats every other option. See the loyalty calculator below for your cards.
Brand behaviour
Costco has shown Low price behaviour over recent data (±4c swing) with a typical range of 142.7–154.7c/L. The lowest average day-of-week price was typically on Monday (~148.3c/L). Track the live cycle to spot the next trough for this network.
About Costco
Costco operates membership-only fuel stations at 19 of its UK warehouses, providing competitive prices exclusively for members. These self-service forecourts require a valid physical Costco membership card and
Track Costco prices from your phone
Watch the price cycle, find the cheapest Costco servo near you and get an alert before the next jump — wherever you are.
