Sydney Western Suburbs Lead the Nation With Sub 165 Cent Diesel as NSW Prices Drop

*By Sarah Chen | 12th January 2026 10:30am AEDT*

Latest data from across Australia reveals a fascinating pattern in diesel pricing, with New South Wales emerging as the standout performer this week. The state recorded a notable 3.3 cent drop overnight, bringing the average diesel price down to 184.9 cents per litre. But the really interesting story lies in Sydney's western suburbs, where savvy motorists can fill up for substantially less than the state average.

The Data Detective's Key Finding

Analysis of 1,072 NSW stations shows a remarkable 120.4 cent spread between the cheapest and most expensive diesel in the state. That's the difference between paying 149.5 cents at the bottom end and 269.9 cents at premium locations. Worth noting: motorists who know where to look could save over $60 on a 50 litre tank.

Sydney's Western Suburbs Dominate

Looking at the data from the past 24 hours, Sydney western suburbs have emerged as Australia's diesel hotspots. Here's what the numbers tell us:

Smithfield takes the crown as the cheapest diesel suburb in the country this morning. With three stations averaging just 160.6 cents per litre, motorists here are paying substantially below the national average. The tightest price spread of just 3 cents between stations suggests healthy competition in the area.

Granville presents a statistically interesting case. All three stations here are showing identical pricing at 164.5 cents, suggesting coordinated competitive positioning. This represents a notable 20 cent saving compared to the state average.

Fairfield offers four stations with an average of 165.9 cents, though the spread widens to 13.4 cents here. The cheapest option at 162.5 cents makes it worth comparing before you fill up.

Auburn rounds out the sub 170 cent club with four stations averaging 168.6 cents. Interestingly, the spread here is also 13.4 cents, mirroring Fairfield's market dynamics.

Why Western Sydney?

The concentration of competitive diesel pricing in Sydney's west isn't coincidental. This represents a notable shift from traditional pricing patterns. Several factors appear to be driving this:

A closer analysis reveals Eastern Creek averaging 174.7 cents across four stations, while Ingleburn shows six stations averaging 171.6 cents. Both represent solid value for motorists in the outer west.

State by State Comparison

The numbers paint a clear picture of where value lies across Australia:

State Average Diesel Price Spread
WA 182.1c 86.9c
NSW 184.9c 120.4c
VIC 185.3c 140.1c
TAS 189.0c 84.1c
NT 237.0c 246.3c

The data indicates Western Australia edges out NSW on average pricing, but Sydney's western suburbs offer the absolute cheapest individual prices in the country.

Regional NSW Worth a Mention

Outside of Sydney, regional motorists in Batemans Bay are finding diesel at an average of 171.2 cents, with a tight 3 cent spread suggesting stable pricing. Tamworth drivers are paying 176.5 cents on average, while Wauchope shows remarkable consistency at 175.8 cents.

The Practical Takeaway

For Sydney motorists, the message is clear: head west to save. Smithfield, Granville, and Fairfield offer the best diesel value in the country right now.

For those tracking the weekly trend, NSW diesel has dropped from 188.2 cents yesterday to 184.9 cents today. This 1.75 percent decrease is the largest state level movement we've recorded this week.

The numbers are clear: motorists who time their fill ups strategically and choose their location wisely could save substantially. A trip to Sydney's western suburbs could mean $10 or more back in your pocket on a full tank.

*Data sourced from official government APIs and community verified prices as at 12th January 2026.*