Costco gas prices in South Australia
South Australia average
- Unleaded 91
- $1.647
- Premium 98
- $1.847
- Diesel
- $2.047
Average across 1 station, per litre · updated July 22, 2026
Costco has 1 gas station in South Australia — the cheapest unleaded today is $1.647/L at Costco Adelaide in Kilburn. South Australia Costco unleaded prices have climbed about $0.210 per litre over the past month, from $1.437 to $1.647. Premium 98 is up $0.180 over the same stretch, now at $1.847. Diesel is up $0.300 over the same stretch, now at $2.047.
Gas stations
1
South Australia
Avg unleaded
$1.647
per litre, AUD
Cheapest now
$1.647
Costco Adelaide
30-day price trend
Unleaded 91$1.647Premium 98$1.847Diesel$2.047
View price history as a table
| Date | Unleaded 91 | Premium 98 | Diesel |
|---|---|---|---|
| July 22, 2026 | $1.647 | $1.847 | $2.047 |
| July 21, 2026 | $1.627 | $1.827 | $2.027 |
| July 20, 2026 | $1.627 | $1.827 | $1.967 |
| July 19, 2026 | $1.627 | $1.827 | $1.927 |
| July 18, 2026 | $1.627 | $1.827 | $1.927 |
| July 17, 2026 | $1.627 | $1.827 | $1.827 |
| July 16, 2026 | $1.567 | $1.747 | $1.807 |
| July 15, 2026 | $1.547 | $1.747 | $1.787 |
| July 14, 2026 | $1.547 | $1.747 | $1.787 |
| July 13, 2026 | $1.547 | $1.747 | $1.787 |
| July 12, 2026 | $1.527 | $1.747 | $1.767 |
| July 11, 2026 | $1.527 | $1.747 | $1.767 |
| July 10, 2026 | $1.517 | $1.737 | $1.737 |
| July 9, 2026 | $1.517 | $1.737 | $1.737 |
| July 8, 2026 | $1.517 | $1.737 | $1.737 |
| July 7, 2026 | $1.507 | $1.707 | $1.727 |
| July 6, 2026 | $1.537 | $1.737 | $1.737 |
| July 5, 2026 | $1.537 | $1.737 | $1.737 |
| July 4, 2026 | $1.537 | $1.737 | $1.737 |
| July 3, 2026 | $1.447 | $1.667 | $1.647 |
| July 2, 2026 | $1.447 | $1.667 | $1.647 |
| July 1, 2026 | $1.427 | $1.627 | $1.627 |
| June 30, 2026 | $1.427 | $1.627 | $1.627 |
| June 29, 2026 | $1.427 | $1.627 | $1.627 |
| June 28, 2026 | $1.427 | $1.627 | $1.627 |
| June 27, 2026 | $1.427 | $1.627 | $1.627 |
| June 26, 2026 | $1.427 | $1.627 | $1.627 |
| June 25, 2026 | $1.427 | $1.667 | $1.687 |
| June 24, 2026 | $1.437 | $1.667 | $1.747 |
| June 23, 2026 | $1.437 | $1.667 | $1.747 |
All stations in South Australia
All 1 station, sorted by unleaded price from lowest to highest. Prices in $/L.
| Rank | Station | Unleaded 91 | Premium 98 | Diesel |
|---|---|---|---|---|
| 1 | Costco AdelaideKilburn | $1.647 | $1.847 | $2.047 |