NSW Diesel Jumps 6.3 Cents Overnight While Sydney Western Suburbs Hold the Line

Latest data from across New South Wales reveals a notable overnight shift in diesel prices that deserves attention from commercial operators and diesel vehicle owners. The state average climbed 6.3 cents per litre overnight, representing a 3.56 percent increase that stands out against relatively stable conditions elsewhere in Australia.

Looking at the data from the past 24 hours, NSW diesel now averages 183.3 cents per litre across 1,068 monitored stations. This represents the largest overnight movement among all Australian states. Worth noting is the substantial price spread of 117.0 cents between the cheapest and most expensive stations, indicating significant opportunities for savvy motorists who know where to look.

The Numbers Behind the Increase

The analysis reveals that NSW diesel prices jumped from an average of 177.0 cents yesterday to 183.3 cents today. While the statewide average paints one picture, drilling into the suburb level data tells a more nuanced story.

Smithfield continues to lead the pack as the most competitive diesel destination in Sydney, with prices averaging just 161.6 cents per litre. The three stations in this suburb offer a remarkably tight spread of only 3.4 cents, with the cheapest option at 159.5 cents. For motorists with larger tanks, that represents a saving of approximately $12 per 50 litre fill compared to the state average.

Granville deserves special mention for its pricing consistency. With an average of 164.1 cents and a spread of merely 0.6 cents between its three stations, this suburb offers predictable value. Fairfield nearby averages 165.9 cents across four stations, making the greater western suburbs a clear winner for diesel buyers.

How NSW Compares to Other States

The data indicates Victoria diesel also increased, though more modestly at 1.2 cents to average 184.2 cents. Interestingly, Western Australia bucked the trend entirely, with diesel prices decreasing by 0.5 cents to average 180.7 cents.

This represents a notable shift from the typical pricing hierarchy. WA now offers the cheapest average diesel among mainland states at 180.7 cents, followed by NSW at 183.3 cents and VIC at 184.2 cents.

Tasmania sits higher at 187.4 cents average, though the Apple Isle has its own competitive pockets. The Northern Territory remains the outlier at 236.4 cents average, though this figure is skewed by remote station pricing. The minimum price of 152.7 cents in the Territory suggests urban centres remain reasonably competitive.

Where Sydney Motorists Should Fill Up

For those seeking diesel in the Sydney metropolitan area, the western suburbs consistently outperform. Beyond Smithfield and Granville, here are the suburbs worth targeting:

Marsden Park offers diesel averaging 168.2 cents across three stations with a tight 4.0 cent spread. Auburn comes in at 169.3 cents average, while Ingleburn shows 169.8 cents across six stations.

Even the south coast offers competitive options, with Batemans Bay averaging 170.6 cents and maintaining an impressively consistent spread of just 1.0 cent.

For comparison, prices in premium inner city locations can exceed 200 cents, making the trip to outer suburbs potentially worthwhile for regular diesel users.

Unleaded Petrol Movement Worth Watching

While diesel captured the headline overnight move, unleaded petrol showed some interesting suburb level patterns. Revesby in NSW saw unleaded prices jump 37.6 cents from 147.5 to 185.1 cents, a substantial single day movement that suggests this suburb may be catching up to the broader cycle.

Meanwhile, Western Australia motorists are enjoying the opposite experience. Forrestdale in Perth saw unleaded drop 21.6 cents to average 173.3 cents. Balcatta fell 16.0 cents to 170.3 cents, and Mandurah decreased 15.1 cents to 179.9 cents.

This east west divergence creates an interesting dynamic worth monitoring in coming days.

What This Means for Motorists

The numbers are clear: motorists who time their fill ups strategically could save substantially. For diesel buyers in NSW, the western suburbs corridor from Smithfield through Granville to Fairfield offers consistent value well below the state average.

The overnight increase may signal the start of an upward cycle for NSW diesel, making today a reasonable time to top up tanks rather than wait. Commercial operators running fleets should particularly note these movements when planning refuelling schedules.

Statistically speaking, motorists in Sydney's west are paying roughly 20 cents less per litre than the state average. On a 70 litre commercial tank, that translates to approximately $14 per fill. For operators filling multiple vehicles daily, the savings compound significantly.

Keep an eye on the interactive fuel map for real time pricing updates as conditions evolve throughout the week.