Perth Southern Suburbs Deliver Nearly 10 Cent Petrol Savings as Price Cycle Bottoms Out

*5th December 2025 8:15am AEDT*

Latest data from Western Australia reveals a notable opportunity for Perth motorists, with southern corridor suburbs recording some of the most substantial petrol price drops we have seen this week. The numbers tell a compelling story for drivers willing to venture slightly outside the CBD.

The Data at a Glance

Analysis of overnight price movements shows Forrestdale leading the charge with a 9.5 cent decrease in unleaded petrol, bringing the suburb average down to 175.1 cents per litre. This represents a significant shift from yesterday's 184.6 cent average and positions the area as one of Perth's most competitive fuel markets right now.

What makes this particularly interesting is the consistency across fuel grades in Forrestdale. Premium 95 dropped 9.3 cents to 191.3 cents, while Premium 98 fell 9.5 cents to 199.7 cents. This uniform movement suggests we are seeing a genuine market correction rather than selective discounting.

Cheapest Suburbs Right Now

For motorists looking to maximise their savings, here are the standout performers across the Perth metro area:

The data indicates a clear pattern: Perth's outer southern and eastern corridors are consistently outperforming inner suburbs on price.

Why Southern Perth Offers Better Value

Several factors contribute to this pricing dynamic. Proximity to fuel distribution hubs in areas like Naval Base and Kwinana Beach reduces transport costs for retailers. Additionally, these suburbs feature a higher concentration of independent operators competing directly with major brands, driving prices down.

The spread between cheapest and most expensive stations in Wanneroo sits at a substantial 30.2 cents, ranging from 171.7 to 201.9 cents. This variation demonstrates how much savvy motorists can save simply by checking prices before filling up.

State Comparison Provides Context

Western Australia currently maintains the lowest average diesel price among mainland states at 189.2 cents per litre. This compares favourably to:

Worth noting is that WA's price spread of 77.6 cents between cheapest and most expensive stations remains moderate compared to NSW's 103 cent spread, suggesting a more competitive market overall.

Regional WA Also Competitive

Motorins in regional Western Australia are also benefiting from competitive pricing. Busselton is averaging 179.3 cents for diesel with prices starting at 173.2 cents, while Albany maintains a remarkably tight 1 cent spread across five stations at around 182 cents.

Further north, Geraldton offers seven stations averaging 182.9 cents with an 8 cent spread, giving drivers reasonable options without the extreme price gouging sometimes seen in remote areas.

What This Means for Your Wallet

A motorist filling a 60 litre tank in Forrestdale at today's average of 175.1 cents would pay approximately $105.06. Compare this to Perth's CBD pricing of around 195 cents, and the saving amounts to roughly $12 per tank. For drivers filling weekly, this translates to potential annual savings exceeding $600.

The numbers are clear: Western Australian motorists who time their fill ups strategically and are willing to drive to outer suburbs could achieve substantial savings.

Actionable Takeaways

  1. Southern corridor priority: Target Forrestdale, Byford, and Kwinana Beach for best value
  2. Check before you fill: Price spreads of 20 to 30 cents within the same suburb mean station selection matters
  3. Regional trips: If heading to the southwest, Busselton and Bunbury offer metro competitive pricing
  4. Timing matters: Current prices suggest we are at or near the bottom of the price cycle, making today a good day to fill up

    5. For real time price comparisons across all Perth suburbs, check our interactive fuel map which is updated throughout the day with the latest community verified prices.