How to Save Money on Petrol in Australia (2026)

How to Save Money on Petrol in Australia (2026)

If you’re looking at the latest fuel price index this quarter, the headline that will catch your eye is $1.78 per litre of petrol – the highest it’s been since 2013. That figure sits right under the federal excise tax and includes all the other charges that drive up cost on top of the raw fuel. In my experience, the real key to saving money isn’t about waiting for a price drop; it’s about squeezing every drop you can out of your car each day.

1️⃣ What You’re Paying Right Now

These are the numbers that will shape every decision you make, from which road you take to what tyre you buy.

2️⃣ Why Australian Roads Make Fuel a Bigger Bite

• Long‑haul distances – The average interstate journey is over 800 km; fuel efficiency becomes a top priority.
• Road tax & tolls – Freeways like the Hume and Pacific Motorway have toll plazas. A TollTag can save you ~5–10 % on each crossing.
• Fuel excise tax – The 10 % federal excise is baked into every litre, making marginal costs higher than many other markets.
• Extreme weather zones – Heatwaves of 40 °C+ in inland Queensland add up to a 6 % increase in engine load and fuel consumption.

3️⃣ Common Mistakes That Cost You

4️⃣ Five Actionable Tips That Cut Your Fuel Bill

4.1 Keep Tyres at the Right Pressure

Pro Tip: Inflate front and rear tyres to 32 psi (or as specified in your owner’s manual). A drop of just one psi can cost you about 0.5 % more fuel per kilometre.

4.2 Use Eco‑Drive Modes Wisely

If your car has an “Eco” or “Economy” setting, keep your speed under 90 km/h on the highway. This mode optimises throttle response and reduces engine load, cutting consumption by up to 5 % on long trips.

4.3 Plan Free‑Toll Routes

Where possible, route your journey via toll‑free roads like the Hume Freeway instead of the toll‑charged alternative. A single trip can save you AUD 10–15 in tolls alone – that’s a full month’s worth of fuel savings on a 500 km return.

4.4 Switch to a Fuel‑Efficient Model

Consider a hybrid or a newer petrol model with better mileage. For example, the Toyota Corolla Hybrid delivers 7.5 L/100 km versus an older sedan that might clock 10.2 L/100 km. Over a 15,000 km annual commute, you’re looking at about AUD 1,125 saved per year.

4.5 Consider LPG or Electric Alternatives

• LPG is the cheapest alternative fuel (≈$0.75/l). If your vehicle is compatible, switching can cut costs by up to 30 %.
• Home EV charging at $0.30/kWh can be cheaper than petrol for many drivers, especially if you’re using a 7 kW charger and have good solar generation.

5️⃣ What I’ve Found Works Best

In my experience, the biggest savings come from combining simple habits with strategic planning:

1. Maintain tyre pressure – cheap, quick, effective.
2. Use navigation apps that avoid tolls – free or low‑cost subscriptions save you money and time.
3. Plan your routes for optimal speed – a little slower on highways can cut consumption noticeably.

If you’re curious about the best tyres for Australian roads, check out our guide: Best Tyre Brands for Australian Roads in 2026.
For portable inflators that make tyre maintenance a breeze: Best Portable Tyre Inflators for Australians (2026).

If you’re leaning toward an electric future, read our step‑by‑step guide: Installing Your Home EV Charger in Australia: The 2026 Dan Cooper Guide.

6️⃣ Quick Comparison Table of Fuel Options

*Assumes a typical sedan consuming ~20 kWh/100 km; actual savings vary.

7️⃣ FAQ – Quick Answers for Everyday Questions

Q1: Is LPG really cheaper than diesel or petrol?
A1: Yes. With LPG priced at $0.75 per litre and comparable fuel economy (~10 L/100 km), you’re looking at roughly a 30–40 % cost reduction versus petrol. However, not all vehicles are compatible – check your owner’s manual or consult a dealer.

Q2: How much does an electric charger add to my electricity bill?
A2: A standard 7 kW home charger will draw about 20 kWh per full charge if you’re topping off a 60 kWh battery. At $0.30/kWh, that’s $6 per full charge. For a typical 15,000 km annual commute, the savings can outweigh this cost by a wide margin.

Q3: Does driving slower always save fuel?
A3: Generally, yes – but there’s an optimal speed range (90–100 km/h for most cars). Driving too slow can actually reduce engine efficiency and increase rolling resistance. Stick to the 90–100 km/h band for best results.

Q4: How often should I check tyre pressure?
A4: At least once a month, or before long trips. A portable inflator makes this quick and painless. Remember that cold temperatures can drop pressure by up to 2 psi overnight, so re‑check after winter.

8️⃣ Bottom Line

Fuel costs in Australia are high enough that every small optimisation counts. The most effective strategies combine:

• Maintenance habits (tyre inflation, engine tuning).
• Smart driving choices (speed control, route planning).
• Alternative fuels or electric charging where feasible.

If you’re still stuck with an older, less efficient car, it might be time to consider a hybrid or even an EV. The upfront cost is offset by lower running costs and the benefit of no fuel excise tax. And if you’re willing to invest in a home charger, you’ll not only save on petrol but also future‑proof your vehicle against rising prices.

9️⃣ Handy Resources & Shopping Links

• Fuel‑efficient tyres – https://www.amazon.com.au/s?k=fuel+efficient+tyres&tag=owlno-22
• Smart fuel gauge – https://www.amazon.com.au/s?k=smart+fuel+gauge&tag=owlno-22
• Eco driving app subscription – https://www.amazon.com.au/s?k=eco+driving+app&tag=owlno-22
• Portable tyre inflator (battery powered) – https://www.amazon.com.au/s?k=battery+powered+tyre+inflator&tag=owlno-22

These tools can help you implement the tips above and keep your fuel wallet as light as possible. Happy driving, mates!

About the author: Dan Cooper is a Automotive Contributor at Owlno. Dan covers the Australian car market, focusing on buying guides, maintenance tips, and road trip inspiration. He writes for drivers of all experience levels navigating Australian roads and conditions.