What is the petrol price cycle?

The cycle is a deliberate pricing strategy where retailers drop prices steadily over weeks, then hike them up suddenly within a few days.

When is the cheapest day to buy petrol?

The cheapest day changes based on the length of the current cycle. Use our tracker to see the exact bottom of the cycle in your capital city.

How long is one cycle?

There is no single length. Sydney and Melbourne often show shorter cycles, Brisbane tends to run longer, Perth follows a weekly FuelWatch rhythm, and Adelaide can be irregular.

Should I always wait for the bottom?

Not always. If your tank can wait, the lower part of the cycle is usually worth watching. If you need fuel today, compare nearby stations and choose a sensible detour.

Do regional towns have cycles?

Many regional towns show weaker or less regular cycles. With fewer stations and different local competition, prices may track wholesale costs and local conditions more closely.

Analytics

Petrol Price Cycles in Adelaide

See where Adelaide sits in its petrol cycle, then open the map for current station reports.

Open map Open interactive analysis

U91Adelaide90-day charts

FuelRadar fuel price report dashboard with charts and station data

Reading the chart

How to read the Adelaide cycle

The chart below shows the rolling 90-day average price. Look for the repeating sawtooth shape: a sharp jump, then a slow decline. Read where today sits in that pattern.

The peak
The chart jumps up sharply. If your tank can wait, compare nearby prices before filling straight after a rise.
The lower range
Prices can settle lower before the next reset. If the chart and station list both look favourable, filling more of the tank may make sense.
Cycle length
Watch the spacing between peaks. Adelaide's cycles can be uneven, so treat the next jump as guidance rather than a guarantee.

Read the cycle before you fill

Each city shows whether petrol prices sit closer to the lower or higher part of the cycle. Premium 95, premium 98 and E10 can move similarly, but check the station price before driving.

Explore the chart

Chart the cycle and compare likely lower-price windows.

Open chart tool

Your fuel

Focused city: Adelaide

Adelaide

The Adelaide petrol cycle over the last 90 days

Source: FuelRadar Australia data.

What a price cycle is

In major cities, petrol prices can jump quickly, then drift down over days or weeks before moving again. That repeating saw-tooth is the price cycle.

Retail pricing drives the cycle as well as wholesale costs, so check its position before you fill.

Why the cycle differs by city

The length and size of the swing change from city to city and over time. Watching the cycle helps you decide when to check prices again.

FuelRadar

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Keep reading

Adelaide fuel timing and station checks

Use the Adelaide cycle with the local city page, forecast and nearby station prices before filling a full tank.

Common questions

Petrol price cycle FAQ

Retailers reset prices to recover margin after a discounting period. A market leader may move first, then competitors can follow within hours.

Petrol Price Cycles in Adelaide

How to read the Adelaide cycle

The peak

The lower range

Cycle length

Read the cycle before you fill

Explore the chart

Adelaide

The Adelaide petrol cycle over the last 90 days

What a price cycle is

Why the cycle differs by city

Adelaide fuel timing and station checks

Petrol price cycle FAQ

Read the cycle before you fill

Explore the chart

Adelaide

The Adelaide petrol cycle over the last 90 days

What a price cycle is

Why the cycle differs by city