Melbourne's Western Suburbs Face 16 Cent Petrol Surge While Bayside Areas Drop

*19th December 2025 8:15am AEDT*

Digging into this week's fuel price data reveals a fascinating divide emerging across Melbourne's outer suburbs. While motorists in the western industrial corridor are copping substantial price increases, those in the southeastern bayside areas are seeing welcome relief at the bowser.

The Western Suburbs Price Surge

A closer look at the numbers shows Altona North has experienced one of the most significant unleaded price movements in Victoria this week. Servos across the suburb are now averaging 189.1 cents per litre for standard unleaded, up a notable 15.9 cents from just days ago.

This raises some interesting questions about pricing strategies in the area. Altona North sits in an industrial heartland, home to logistics hubs and commercial operations. The eight stations in the suburb have moved in lockstep, which is worth investigating for motorists who regularly fill up in the area.

Premium fuels have followed suit. Premium 98 in Altona North now sits at 213.3 cents, up 15.4 cents, while Premium 95 has climbed to 204.3 cents, also up over 15 cents.

Nearby St Albans tells a similar story. Premium 98 prices have surged over 20 cents to reach 213.4 cents per litre, the largest single movement recorded across the state this week. Seven stations in the suburb have pushed prices higher, leaving local motorists with fewer competitive options.

Bayside Relief: Seaford and Frankston Buck the Trend

The variation between regions is striking when you compare the west with Melbourne's southeastern peninsula.

Seaford motorists are seeing the opposite pattern. Unleaded prices have dropped 10 cents to an average of 172.7 cents per litre, a full 16.4 cents cheaper than what drivers in Altona North are paying today. That's a saving of roughly $8 on a 50 litre tank.

Premium 98 in Seaford has fallen even more dramatically, down 13.7 cents to 195 cents per litre. For those driving performance vehicles, the savings are significant.

Frankston, just up the road, offers similar value. Unleaded has dropped nearly 11 cents to average 176.5 cents across the suburb's ten stations. The concentration of competition in the area appears to be working in consumers' favour.

Diesel Delivers Mixed Results

The diesel story adds another layer to this pricing puzzle. Preston in Melbourne's north has seen diesel prices fall 15.2 cents to 186.7 cents per litre, offering genuine relief for commercial operators and SUV drivers in the area.

Meanwhile, across Victoria as a whole, diesel has edged up 1.7 cents to an average of 189.6 cents. The state average masks considerable variation, with prices ranging from 165.5 cents at the cheapest servo to 208.9 cents at the most expensive.

Regional Victoria Remains Competitive

Motorcists should be aware that some of Victoria's best diesel deals continue to be found outside the metro area. Moe in Gippsland is averaging 174.6 cents for diesel, with the cheapest station offering 165.5 cents. Bright in the alpine region comes in at 174.2 cents, while Epsom near Bendigo averages 176 cents.

Even closer to Melbourne, Doveton in the outer southeast offers diesel at 177.7 cents average, with some stations as low as 174.9 cents.

What This Means for Victorian Motorists

The data uncovers a clear pattern: price movements are increasingly localised. Two suburbs 30 kilometres apart can move in completely opposite directions on the same day.

For drivers in Melbourne's western corridor through Altona North and St Albans, the advice is straightforward. If you have flexibility in where you fill up, a short drive east or south could save you genuine money. The Deer Park area, while not as cheap as the bayside, offers diesel at 178 cents average, which remains below the western suburbs' unleaded prices.

For those in the southeastern suburbs around Seaford, Frankston, and Langwarrin, now might be the time to fill up before any potential price cycle movement. Langwarrin has seen some increases this week, with unleaded up 13 cents to 190.1 cents, suggesting the competitive pricing in the region may not last indefinitely.

The Bottom Line

Armed with this information, motorists can make informed decisions about when and where to fill up. The 16 cent gap between Melbourne's western and southeastern suburbs represents real money in your pocket, or not, depending on where you choose to buy.

Price transparency remains your best tool. Before making a trip, check the interactive fuel map for real time prices in your area. The servos offering sub-175 cent unleaded today may not be the same ones tomorrow.