Motorists in Perth and Mandurah are advised to fill up now if they need to, with petrol prices set to rise tomorrow. Drivers are also urged to only purchase the fuel they need to fill their vehicles, not to stockpile.
FuelWatch reports that, from 6am tomorrow (Wednesday 9 September 2026), the average price of Perth’s regular unleaded petrol (ULP) will increase by 15 cents per litre (cpl) to 216.2 cpl with Caltex hiking up to 231.9 cpl; Ampol, BP, and EG Ampol up to 229.9 cpl; and 7-Eleven up to 219.9 cpl.
Despite the average hike tomorrow, there are still 25 individual sites offering ULP below 197 cpl, so consumers should check the FuelWatch website to find the lowest price near them. Buying fuel from the cheapest site rather than the most expensive, a difference of 43 cpl, means motorists can potentially save $25 on a 60-litre tank.
Tuesday’s cheapest ULP is available for:
- 193.9 cpl at FastFuel 24/7 (Forrestfield) in the East;
- 188.7 cpl at Costco Casuarina (Costco sites are membership based) and Costco Perth Airport, and 191.5 cpl at Liberty Beckenham in the South; and
- 193.5 cpl at Liberty Landsdale in the North.
Wednesday’s cheapest ULP will be available for:
- 193.7 cpl at Vibe Forrestfield in the East;
- 188.5 cpl at Vibe Kwinana Town Centre in the South; and
- 193.3 cpl at Vibe Nollamara in the North.
To find the cheapest fuel at any time, check the mobile compatible www.fuelwatch.wa.gov.au site which features an interactive map. After 2.30pm each day both today’s and tomorrow’s prices are available. Also, get a daily update by subscribing to free email alerts or phone 1300 30 40 54. If you want to understand more about how FuelWatch works, go to www.fuelwatch.wa.gov.au/about/works.
Media Contact: cpmedia@lgirs.wa.gov.au