Perth Petrol Prices Today — How to Find the Cheapest Fuel in Perth

Perth Petrol Prices — What You're Paying at the Pump

Perth has a distinctive and well-documented petrol price cycle that the Western Australian Government monitors closely through the FuelWatch scheme. Understanding Perth's cycle is genuinely useful for motorists, as prices can vary by 20-30 cents per litre across a single week.

How to Find the Cheapest Petrol in Perth

Western Australia operates FuelWatch (fuelwatch.wa.gov.au), a government-run scheme that requires all WA petrol retailers to notify their prices by 2pm each day for the following day. This means Perth motorists know the next day's prices in advance — a unique advantage compared to other Australian states.

FuelWatch features include:

• Prices published daily for every servo in the Perth metropolitan area
• Email and SMS subscription for personalised cheapest-price alerts
• Historical price data and trend analysis
• FuelWatch app available on iOS and Android

Additional Perth fuel price tools:

• MotorMouth — motormouth.com.au — integrates WA fuel data with trend analysis
• RAC Fuel Watch — The RAC of WA publishes regular Perth fuel price analysis at rac.com.au

Perth Petrol Price Cycle — The Cheapest Day to Fill Up

Perth's petrol price cycle is one of the most studied in Australia. Prices typically begin low on Tuesday mornings, rise steadily through the week, peak on Thursday or Friday, and then decline over the weekend and into Monday. Because FuelWatch publishes next-day prices by 2pm, Perth drivers can check the exact prices for the following morning and plan their fill-up accordingly.

Understanding Perth Fuel Prices — The Fuel Excise

The Commonwealth fuel excise of approximately 48.8 cents per litre applies uniformly across Perth and Western Australia. The excise is one of the largest fixed components in the pump price and is indexed to CPI biannually. Federal excise changes — such as those seen in 2022 — have an immediate and direct impact on Perth petrol prices.

Perth Fuel Types and Prices

• Unleaded 91 — Standard grade; most affordable and most widely used
• Unleaded 95 (Premium) — Around 10-15 cents per litre above 91
• Unleaded 98 (Premium Plus) — 15-25 cents above standard 91; required by some performance vehicles
• E10 — Ethanol-blended; typically the cheapest available option
• Diesel — Different pricing cycle; used by commercial vehicles, utes and many SUVs

Electric Vehicle Charging in Perth

Perth's EV charging infrastructure is expanding rapidly along the coast and in metropolitan centres. Chargefox, Ampol AmpCharge and Tesla Supercharger networks are growing in the Perth area. The PlugShare app maps all public EV charging stations across Perth and Western Australia.

This article was compiled by AI and screened before publishing. See our editorial standards.