Still building Adelaide's history. We started recording Adelaide on Monday 19 October and have 9 days so far. The cycle analysis switches on once there are 28.
Adelaide petrol prices, last 120 days
We started recording Adelaide on Monday 19 October. The chart fills in day by day; the cycle check switches on after 28 days. Diesel doesn't cycle: the typical Adelaide diesel price was 274.9c on 27 Oct.
Middle (median) regular unleaded price across Adelaide stations each morning. Gaps are days the official data isn't published yet.
Where you fill up matters more than when
On 27 Oct, a quarter of Adelaide stations charged 224.5c or less, 4.4c under the typical price: $2.20 on a 50L fill. The cheapest was 205.5c. Fuel points can add to that: see what each fuel program earns, or find the cheapest fuel in your suburb.
See the cheapest servo near you. PointFarm shows live prices and the points each station earns, so you know the real cost before you drive there.
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| Day | Typical ULP 91 |
|---|---|
| Tue 27 Oct | 228.9c |
| Mon 26 Oct | 230.4c |
| Sun 25 Oct | 230.4c |
| Sat 24 Oct | 231.2c |
| Fri 23 Oct | 231.9c |
| Thu 22 Oct | 234.4c |
| Wed 21 Oct | 235.2c |
| Tue 20 Oct | 235.9c |
| Mon 19 Oct | 236.9c |
Adelaide petrol price questions
What's the cheapest day to buy petrol in Adelaide?
Right now there isn't a reliable one. The ACCC says cycles have mostly not occurred in Adelaide since late February 2026. We've just started recording Adelaide's prices, so our own day-by-day check isn't ready yet. Choosing a cheaper station is the surer saving.
Does Adelaide have a petrol price cycle?
In 2025 the ACCC measured Adelaide's cycle at around 2 and a half weeks on average. Since late February 2026 it says cycles have mostly not occurred there. We've only just started recording it, so our own check isn't ready yet.
Does diesel follow the petrol price cycle?
No. The ACCC says retail diesel and LPG prices do not move in price cycles; they follow wholesale costs. The cycle applies to unleaded petrol, including E10, 95 and 98, which tend to move together.
Where does this data come from?
Every price comes from the South Australian Government SAFPIS, which station operators must report to. Each day we take every Adelaide station's regular unleaded (ULP 91) price at about 7am and record the middle (median) price, so one very cheap or very dear station can't skew it. The state fuel price reporting scheme.
Sources: South Australian Government SAFPIS (the state fuel price reporting scheme). Background on cycles from the ACCC, read Monday 19 October. See every city.