Premium Unleaded 98 Prices in South Australia

As of 22 July 2026, the cheapest Premium Unleaded 98 in South Australia is 184.7c per litre at Costco, Blair Athol — versus the South Australia average of 205.1c (1.4c below the national average of 206.5c). Across 590 stations, Premium Unleaded 98 ranges from 184.7c to 292.9c, so filling a 50-litre tank at the cheapest station saves about $10.20 over the state average. Over the past week the SA average has risen 16.3c.

Compare Premium Unleaded 98 across 590 stations in South Australia. Updated 07:54 PM, 22 Jul 2026.

South Australia data source: Petrolmate sources South Australian prices via SA's Informed Sources real-time platform, the state's official live pricing feed. We sync at 6am and 12pm ACDT.
Best day to fill up — Premium Unleaded 98 in South Australia
Fill up on Mon or Tue, avoid Wed or Thu
South Australia shows moderate price cycling with mid-week peaks. Start-of-week refueling (Monday/Tuesday) offers the best value in South Australia.
205.1c
South Australia Average
184.7c
Cheapest
292.9c
Highest
590
Stations

Compare Fuel Types in South Australia

Diesel (219c)Ethanol 10% (171c)Ethanol 85% (253c)LPG/Autogas (115c)Premium Diesel (219c)Premium Unleaded 95 (196c)Premium Unleaded 98 (205c)Unleaded Petrol (182c)

Premium Unleaded 98 in South Australia Insights

How have Premium Unleaded 98 prices in South Australia moved over the past 88 days?

Over the past 88 days, Premium Unleaded 98 in South Australia has averaged 201.9c per litre, peaking at 214.7c on 25 April and bottoming out at 182.1c on 1 July — a range of 32.6c. Over the past week the SA average has risen 16.3c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $16.30.

MonthAverage Premium Unleaded 98
April 2026212.5c
May 2026209.7c
June 2026193.4c
July 2026191.5c

Which stations have the cheapest Premium Unleaded 98 in South Australia?

Costco Kilburn
184.7c
Costco Kilburn
184.7c
Sunlands Service Centre
186.9c
Sunlands Service Centre
186.9c
Ampol Foodary Nuriootpa
187.3c
Ampol Foodary Nuriootpa
187.3c
APCO Mount Gambier
188.5c
APCO Mount Gambier
188.5c
U-Go Clearview
188.6c
U-Go Clearview
188.6c

Which brand sells the cheapest Premium Unleaded 98 in South Australia?

BrandAvg PriceStations
U-Go191.4c5
Solo195.0c12
United197.8c33
X Convenience200.0c49
AM/PM200.8c18
BP202.2c38
Exxon204.1c3
Liberty204.4c15

Which suburbs have the cheapest Premium Unleaded 98 in South Australia?

Premium Unleaded 98 in South Australia: common questions

What is the cheapest Premium Unleaded 98 in South Australia today?

The cheapest Premium Unleaded 98 price in South Australia right now is 184.7c per litre, across 590 stations tracked. The cheapest suburb right now is Clearview at a 191.1c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 205.1c saves $10.20. See the live cheapest-stations list on this page for the exact station, address and suburb. Prices update twice daily from the official state government feed, so the cheapest station can change between the morning and afternoon updates — check again before you drive.

What is the average Premium Unleaded 98 price in South Australia?

The current South Australia average for Premium Unleaded 98 is 205.1c per litre — 1.4c below the national average of 206.5c. Prices at individual stations range from 184.7c to 292.9c, a spread of 108.2c that shows how much shopping around can save. Over the past week the SA average has risen 16.3c. Petrolmate computes this average from every station reporting Premium Unleaded 98 in South Australia via the official government price feed, refreshed twice daily.

Which brand has the cheapest Premium Unleaded 98 in South Australia?

U-Go is currently the cheapest brand for Premium Unleaded 98 in South Australia at 191.4c per litre average across 5 stations. The gap between the cheapest brand (U-Go, 191.4c) and the priciest in our list (Perrys, 205.6c) is 14.2c per litre — about $7.10 per 50-litre tank. Brand averages are recalculated twice daily from official price data, so the cheapest brand can change with the price cycle.

How have Premium Unleaded 98 prices in South Australia moved recently?

Over the past 88 days, Premium Unleaded 98 in South Australia has averaged 201.9c per litre, peaking at 214.7c on 25 April and bottoming out at 182.1c on 1 July — a range of 32.6c. Over the past week the SA average has risen 16.3c. Monthly averages for the past half-year are published in the table on this page. All figures come from official South Australia government price reporting, aggregated daily by Petrolmate.