7-Eleven vs Costco: Unleaded 91
7-Eleven 664 stations · Costco 14 stations
Costco is lower by
17.8c/L- 7-Eleven average
- 238.5
- Costco average
- 220.7
- Grades both report
- 4
7-Eleven averages 238.5 c/L and Costco averages 220.7 c/L for Unleaded 91 across Australia. On a 50-litre fill, that is $8.90.
Unleaded 91 prices and stations
- Listed stationsEvery station FuelRadar lists for the brand664147-Eleven lists 650 more
Every fuel type, side by side
7-Eleven has the lower average in 0 of 4 grades both brands report; Costco in 4.
Unleaded 91 by state
Average Unleaded 91 in each state where both brands have a current report.
- Western Australia56 stations · 2 stations239.4210.7Costco 28.7c lower
- Victoria199 stations · 3 stations237.1227.4Costco 9.7c lower
7-Eleven reports in NSW, QLD, WA, VIC, ACT. Costco reports in VIC, WA, NSW, ACT, QLD, SA.
7-Eleven vs Costco questions
Is 7-Eleven or Costco cheaper for Unleaded 91?
Across the current national Unleaded 91 reports, Costco has the lower average at 220.7c, compared with 238.5c for 7-Eleven. These samples cover different stations and locations. Check nearby prices and update times before choosing.
What is the average 7-Eleven Unleaded 91 price?
7-Eleven Unleaded 91 averages 238.5c across 637 reporting stations in Australia, with the cheapest listed at 221.5c.
What is the average Costco Unleaded 91 price?
Costco Unleaded 91 averages 220.7c across 6 reporting stations in Australia, with the cheapest listed at 210.7c.
Should I always pick the cheaper brand?
Not necessarily. Brand averages move with the price cycle, and loyalty dockets or fuel vouchers can shift the real cost. Use this comparison as a guide, then check the fuel map for nearby station prices on your route.









