Paying less for fuel in Brisbane: apps, price cycles and timing

How do you find low fuel prices in Brisbane?

Use a fuel price app, and check it just before you fill up. Every fuel retailer in Queensland has to report its prices, within 30 minutes of a change at the bowser, under the Fair Trading (Fuel Price Reporting) Regulation 2018.^[4] A fuel type that has run out must be reported within 30 minutes too.^[4]

That data goes to free apps and websites. Queensland Treasury lists 19 of them, including MotorMouth, Petrol Spy, Pumped, FuelMap, Petrol Buddy and the RACQ Fuel and Deals App, with features such as price-drop alerts.^[5] The government says it isn't associated with, and doesn't endorse, any of them, so pick one whose map and alerts suit you.^[5]

Prices differ a lot between nearby sites. The ACCC's research shows that retailers don't all raise their prices at once, so after a jump at one servo, another a few streets away may still be on the old price.^[2]

What are petrol price cycles, and does Brisbane still have them?

In Brisbane, as in Sydney, Melbourne, Adelaide and Perth, petrol prices have tended to move in cycles: a sharp rise over a short period, then a slow fall over a longer one, and then it repeats.^[1] The cycles come from retailers' own pricing decisions.^[1] Across Sydney, Melbourne and Brisbane, average prices can take up to two weeks to climb from the low point to the high, and a single site can jump by 30 cents a litre or more.^[2]

Brisbane's cycle averaged about six and a half weeks in 2025.^[1] The ACCC's record of the last five complete cycles:^[1]

Then the pattern broke. The ACCC says that since the Middle East conflict began in late February 2026, price cycles have mostly not occurred in Sydney, Melbourne, Brisbane and Adelaide.^[1] Diesel and LPG don't move in cycles at all.^[1]

When should you fill up?

The ACCC's price cycle page carries a short buying tip for each city, updated several times a week.^[2] At the time of writing its Brisbane tip said prices had decreased and that drivers could shop around for lower-priced retailers.^[1] Check it before a big fill:

• If prices are near the bottom, fill the tank rather than buying a few litres.
• If prices have just jumped, buy only what you need and look on the app for a site that hasn't moved yet.
• If the tip says no clear cycle, as it has for much of 2026, the location matters more than the day: compare sites on the app.

The ACCC is careful to say that past cycles only suggest which days might be cheaper or dearer in future, so treat the dates in the table as a guide, not a forecast.^[1]

Is the price on the board what you pay?

It's the most you should pay. Since 31 January 2018, Queensland retailers can't show conditionally discounted prices on their price boards, so the board price is the maximum.^[6] Discounts that need a shopper docket, a voucher, a rewards card or an in-store purchase are still allowed; they just can't be on the board.^[6]

The board, the pump, the register and the price reported to the apps should all match. When a price goes up, the board changes before or with the bowser; when it goes down, the bowser changes first or at the same time.^[6] Check the pump before you start. If a retailer has reported a wrong price to the apps, you can complain through the Queensland Government's notify fuel prices website.^[6]

How much difference does it make?

The ACCC estimated that in 2023 a Brisbane driver buying 50 litres of regular unleaded a week could have saved around A$242 over the year by buying at low points in the cycle and at lower-priced sites; it stresses that the figure rests on assumptions.^[2]

Where you buy matters beyond Brisbane, too. On 21 October 2026 the ACCC recorded an average of 236.2 cents a litre for regular unleaded across the five largest cities, against 246.7 across more than 190 regional locations; Brisbane's own daily average was 237.4.^[3] On a day trip out of the city, filling up before you leave Brisbane is often worth checking on the app.

To turn a price per litre into a weekly budget for a particular car, use how much fuel a week of driving costs. Fuel's share of a year of owning a car is in the cost of owning a car in Brisbane.

Filling up a rental car before you return it

A rental usually goes back with the fuel level it left with, and any shortfall is charged at the rental company's own rate, so compare that rate with the pump price before deciding to skip the refill. Use the app on return day to find a lower-priced site on your way back, fill up there, and keep the receipt. The fuel type is on the label inside the fuel flap; using the wrong one is expensive in any car.

Other charges that can appear on a rental bill besides fuel are listed in hidden costs of car rental.