Diesel vs. Petrol: November 2025 - Which Fuel is Cheaper in Australia?

Navigating the fluctuating fuel market in Australia can be a challenge. As of November 2025, Australian motorists are keenly aware of the impact fuel prices have on their household budgets. This article provides a comprehensive analysis of current diesel and petrol prices across major capital cities, offering insights to help you make informed decisions and optimise your fuelling costs.

Current Fuel Price Landscape: A Capital City Comparison

Understanding the price differences between diesel and various petrol grades (Unleaded 91, E10, Premium 95, and Premium 98) is crucial for cost-conscious drivers. Let's examine the current averages across several capital cities:

• Sydney: Diesel (DSL) averages 192.88 cpl (cents per litre). Unleaded 91 (U91) sits at 189.64 cpl, E10 at 187.77 cpl, Premium 95 (P95) at 206.94 cpl, and Premium 98 (P98) at 213.80 cpl.
• Brisbane: Diesel is slightly higher at 194.12 cpl. Unleaded 91 is 184.33 cpl, E10 is 181.11 cpl, Premium 95 is 197.95 cpl, and Premium 98 is 208.66 cpl.
• Perth: Diesel is priced at 191.66 cpl. Unleaded 91 is significantly lower at 173.09 cpl. Premium 95 is 189.14 cpl, and Premium 98 is 198.32 cpl. E10 is currently unavailable in Perth.
• Adelaide: Diesel averages 189.09 cpl. Unleaded 91 is 184.09 cpl, E10 is 168.52 cpl, Premium 95 is 201.67 cpl, and Premium 98 is 208.65 cpl.
• Hobart: Diesel is at 193.63 cpl. Unleaded 91 is priced at 179.00 cpl, E10 is 173.23 cpl, Premium 95 is 195.10 cpl, and Premium 98 is 203.55 cpl.
• Darwin: Diesel averages 190.98 cpl. Unleaded 91 is 187.45 cpl, Premium 95 is 203.34 cpl, and Premium 98 is considerably higher at 224.37 cpl. E10 is currently unavailable in Darwin.
• Canberra: Diesel is the most expensive of the cities listed, at 201.90 cpl. Unleaded 91 is 185.69 cpl, E10 is 184.93 cpl, Premium 95 is 203.95 cpl, and Premium 98 is 210.73 cpl.

As these figures demonstrate, fuel prices can vary considerably from city to city. Currently, Adelaide appears to offer some of the most affordable prices across multiple fuel types.

Factors Influencing Fuel Prices

Several factors contribute to the price you pay at the pump. These include:

• Crude Oil Prices: Global crude oil prices are a primary driver.
• Exchange Rates: The Australian dollar's performance against the US dollar affects import costs.
• Refining Margins: The cost of refining crude oil into usable fuel influences the final price.
• Taxes and Levies: Government taxes and levies add a significant component to the price.
• Competition: Local competition between service stations can lead to price variations.
• Geopolitical events: Global events can have a sudden impact on fuel supply and prices.

Diesel vs. Petrol: Making the Right Choice for Your Vehicle

The "cheapest" fuel isn't always the best choice. Consider these factors when deciding between diesel and petrol:

• Vehicle Type: Diesel engines are typically found in larger vehicles, SUVs, and commercial vehicles, prized for their fuel efficiency under heavy loads. Petrol engines are common in passenger vehicles.
• Driving Habits: If you primarily drive short distances in urban areas, a petrol vehicle might be more suitable. Diesel engines perform better on longer journeys, offering superior fuel economy.
• Maintenance Costs: Diesel engines can have higher maintenance costs due to their more complex design.
• Purchase Price: Diesel vehicles often have a higher initial purchase price.

Understanding Fuel Price Cycles

Many Australian cities experience regular fuel price cycles, with prices fluctuating over a weekly or bi-weekly period. Recognising these cycles can help you time your fuel purchases to coincide with the lower points in the cycle, potentially saving you a significant amount of money over time.

How to Save Money on Fuel

Here are some actionable tips to help you reduce your fuel expenses:

• Monitor Fuel Prices: Regularly check fuel prices in your area and identify the cheapest stations.
• Drive Efficiently: Avoid harsh acceleration and braking, maintain a steady speed, and ensure your tyres are properly inflated.
• Service Your Vehicle: A well-maintained vehicle is more fuel-efficient.
• Combine Trips: Plan your errands to minimise unnecessary travel.
• Consider Alternative Transportation: When possible, walk, cycle, or use public transport.
• Use Fuel Price Tracking Apps: Utilise tools to find the cheapest fuel in real time.

FuelRadar: Your Partner in Finding the Cheapest Fuel

In today's dynamic fuel market, having access to real-time information is essential. FuelRadar provides motorists across Australia with up-to-the-minute fuel prices, empowering you to make informed decisions and save money. Whether you're looking for the cheapest Unleaded 91 in Perth (currently averaging 173.09 cpl) or trying to find the best diesel deal in Canberra (where it's averaging 201.90 cpl), FuelRadar has you covered.

FuelRadar's user-friendly interface allows you to quickly locate the cheapest fuel stations near you, saving you both time and money. You can view fuel prices on our interactive map at https://fuelradar.com.au/map, making it easy to compare prices across different locations.

For even greater convenience, download the FuelRadar app on your iOS or Android device. With the app, you can receive notifications about price drops, save your favourite stations, and track your fuel consumption. Download the FuelRadar app today and start saving: https://fuelradar.com.au/download-the-fuelradar-app

Current Price Trends: What the Data Tells Us

Analysing current fuel price data reveals some interesting trends. For example, Unleaded 91 prices are currently 9.6% higher in Sydney (189.64 cpl) than in Perth (173.09 cpl). Premium 98 prices also vary significantly, with Darwin (224.37 cpl) being 13.1% more expensive than Perth (198.32 cpl). Diesel is currently 6.8% more expensive in Canberra (201.9 cpl) compared to Adelaide (189.09 cpl). In Sydney, Premium 95 (206.94 cpl) costs 9.1% more than Unleaded 91 (189.64 cpl). Brisbane motorists can save 1.7% by choosing E10 (181.11 cpl) over Unleaded 91 (184.33 cpl). Adelaide currently offers the cheapest prices for multiple fuel types, making it an affordable capital city for motorists. The top 3 cheapest capital cities for Unleaded 91 are currently Perth (173.09 cpl), Hobart (179 cpl), and Adelaide (184.09 cpl).

Conclusion

Staying informed about fuel prices is paramount for Australian motorists in November 2025. By understanding the factors that influence fuel costs, adopting fuel-efficient driving habits, and utilising resources like FuelRadar, you can effectively manage your fuel expenses and keep more money in your pocket. Download the FuelRadar app today and start saving on every fill-up!