Costco Members-Only Fuel — Fuel Discount Guide
Costco fuel is consistently 15-25c/L cheaper than market — but you need a $65/year membership. 36 locations nationally, pay-at-pump only.
Full guide
Costco Members-Only Fuel
Costco fuel stations are consistently the cheapest in any market they operate in — but access is limited to Costco members.
The deal
- Typical saving: 15-25c/L below market average
- Cost: $65/year Costco membership
- Locations: 36 stations at Costco warehouse sites nationally
Is it worth it?
For a driver filling 50L per week:
- At 20c/L saving: $10/week × 52 weeks = $520/year
- Minus $65 membership = $455 net saving
- Pays for the membership in less than 7 weeks
How to use
1. Join Costco ($65/year) 2. Visit a Costco warehouse with a fuel station 3. Pay at the pump via credit or debit card (pre-authorisation) 4. Fuel is priced per-litre at the pump — no discount to apply, the base price IS the saving
Limitations
- Only 36 locations nationally — check if there's one near you
- Members-only — must present membership card at the pump
- Card payment only — pre-authorisation required (no cash)
- No stacking — Costco's low base price means no additional loyalty programs apply
Costco fuel station locations
Major metro areas only — check the Costco Australia store finder for fuel station locations near you.
Participating brands
This discount applies at the following fuel station brands:
Official Terms & Conditions
Always check the latest T&Cs before relying on a discount. Bill Hero monitors these pages weekly for changes.
View official T&Cs →Quick facts
- How to access
- Costco membership card ($65/year). Pay at pump via credit/debit card pre-authorisation.
- Trigger
- Active Costco membership. Visit a Costco warehouse with a fuel station.
- Restrictions
- 36 locations only (limited to Costco warehouse sites). Members-only. Pay-at-pump via card pre-authorisation — no cash, no instore payment. No stacking with other programs.