Costco Fuel Prices Australia

Live prices across 5+ stations nationwide

5
Stations
2
States
148.7c
Lowest Price
152.7c
Average Price
19.6c
vs Market Avg
Market Position
Cheapest (166.9c) Market Avg Most Expensive (180.0c)

Costco is 19.6c cheaper than the market average

14-Day Price History
Daily Avg Stable
17 Jan Today

Costco operates 5 fuel stations across 2 Australian states and territories. Current unleaded prices range from 148.7c to 156.7c per litre, with an average of 152.7c/L across the network. On average, Costco prices are 19.6c/L below the national market average of 172.3c/L, making them a competitive choice for budget-conscious motorists. The best Costco prices are found in Western Australia (averaging 148.7c/L), while Victoria tends to be higher at 156.7c/L.

PetrolSMART. Smart Fuel Insights

Costco Prices Steady
Prices at Costco are holding steady at the moment. We're tracking 12 stations across Australia.
0 Price Drops Spotted
We've found 0 Costco servos with recent price drops, currently cheaper than their local area average.
Cheapest Day: Thursday
Looking at the data, Thursday tends to have the best prices at Costco. Worth keeping in mind for your next fill.

PetrolSMART Price Intelligence

PetrolSMART Market Sentiment
22%
39%
39%
Fill Now
Good Value
Fair
Wait
Check

39% of stations suggest waiting might save you money

Price Cycle Overview

Distribution of stations across cycle phases in Costco

Dominant
High
20% conf
Low 0% (0)
Rising 0% (0)
High 100% (7)
Falling 0% (0)
High Phase Dominant
Prices near peak - wait if you can
7-Day Price Forecast
+0.0c
average expected change
0
forecasting
drop
12
stable
0
forecasting
rise
Prices Expected to Hold Steady
Prices across Costco are expected to remain relatively stable over the next week. Fill up when convenient.
Best Day to Fill Up
Thursday

Based on historical price patterns in Costco, Thursday tends to offer the best prices. Some areas see prices start to rise on Thursday ahead of the weekend.

Best Day to Fill Up
Saturday
154.0c avg · Save up to 0.5c/L
Cheapest Suburb
148.7c avg · WA
Cheapest In
100%
of 4 local markets

Cheapest Costco Stations Right Now

Costco Casuarina
Casuarina, WA 6187
148.7¢/L
137 Market St
Costco Perth Airport
Perth Airport, WA
148.7¢/L
142 Dunreath Dr
Costco Moorabbin (Members Only)
Moorabbin, VIC 3194
156.7¢/L
8 Chifley Drive, Moorabbin, 3194
Costco Epping (Members Only)
Epping, VIC 3076
156.7¢/L
60 Deveny Road, Epping, 3076
Costco Ardeer (Members Only)
Ardeer, VIC 3022
156.7¢/L
740 Ballarat Road, Ardeer, 3022

Costco Prices by State

State Stations Min Price Avg Price Max Price
Victoria 3 156.7¢ 156.7¢ 156.7¢
Western Australia 2 148.7¢ 148.7¢ 148.7¢

Costco Prices by Fuel Type

Fuel Type Stations Cheapest Average
Premium Diesel 6 158.7¢ 163.0¢
Premium Unleaded 98 9 170.7¢ 173.9¢
Unleaded Petrol 5 148.7¢ 152.7¢

How Costco Compares

Average unleaded prices compared to other major brands

Independent
180.0¢
Ampol
172.8¢
Bp
173.3¢
Shell
170.0¢
7-Eleven
167.5¢
Coles
175.8¢
United
167.6¢
Metro
170.0¢

Market average: 172.3c/L

Popular Costco Locations

Ardeer, VIC (2 stations, 156.7¢) Casuarina, WA (2 stations, 148.7¢) Perth Airport, WA (2 stations, 148.7¢)

Find Cheap Costco Fuel Near You

Use Petrolmate to compare live fuel prices and save money every time you fill up.

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Costco Deep Insights

Costco offers members-only fuel at consistently low prices, typically 10-20c below market average.

Price Trend Analysis

7-Day Trend

-0.3c
Stable (-0.2%)

30-Day Trend

-2.8c
Falling (-1.8%)

30-Day Range

152.2c - 156.7c
Volatility: Low

Price Distribution

Where Costco stations fall on the price spectrum:

Under 170c 170-190c Over 200c

Median Price

152.7c
50% of stations below this

Standard Deviation

±4.0c
Consistent pricing

Price Spread

8.0c
148.7c to 156.7c (10th-90th)

Best Day to Fill Up at Costco

154.2c
Sun
154.2c
Mon
154.5c
Tue
154.5c
Wed
154.1c
Thu
154.1c
Fri
154.0c
Sat
Fill up on Saturday instead of Wednesday to save 0.5c/L

Cheapest Costco Suburbs

Casuarina, WA 148.7c Perth Airport, WA 148.7c Ardeer, VIC 156.7c Epping, VIC 156.7c Moorabbin, VIC 156.7c

Costco operates in 5 suburbs across Australia

Most Expensive Costco Suburbs

Ardeer, VIC 156.7c Epping, VIC 156.7c Moorabbin, VIC 156.7c Casuarina, WA 148.7c Perth Airport, WA 148.7c

Competitive Position

Cheapest In

100.0%
of 4 competitive markets

Below Average In

100.0%
of markets where Costco operates

Rating

Excellent
Overall competitive standing

Most competitive in: Epping, Perth Airport, Moorabbin, Ardeer

Available Fuel Types

  • Premium Diesel at 6 stations (from 158.7c, avg 163.0c)
  • Premium Unleaded 98 at 9 stations (from 170.7c, avg 173.9c)
  • Unleaded Petrol at 5 stations (from 148.7c, avg 152.7c)

Smart Savings Tips for Costco

  • Best value at Casuarina (148.7c average)
  • Look for stations in the bottom 25% (under 148.7c) for best deals
  • Use Petrolmate to compare Costco with other brands in your area before filling up

Prices last updated: 30 January 2026 at 12:53 PM AEST | Based on 31 days of historical data