Guides3 min read

Complete Guide to Fuel Types: Which One Should You Use?

Learn about all fuel types available in Melbourne including Unleaded 91, Premium 95/98, Diesel, E10, E85, and LPG. Discover which fuel is right for your vehicle and how to save money.

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Complete Guide to Fuel Types: Which One Should You Use?

Complete Guide to Fuel Types: Which One Should You Use?

Finding the right fuel for your vehicle can be confusing with so many options available. This comprehensive guide will help you understand all fuel types in Melbourne and make informed decisions to save money.

Understanding Fuel Types

Unleaded 91 (U91)

Best for: Most standard vehicles

Unleaded 91 is the most common fuel type in Australia. It's suitable for most vehicles and offers the best balance between price and performance. If your vehicle manual doesn't specify a higher octane requirement, U91 is your best choice.

Benefits:
  • Most affordable option
  • Widely available
  • Suitable for most vehicles
When to use: Daily driving, standard vehicles, budget-conscious drivers

Premium 95 (P95)

Best for: Modern vehicles with turbochargers or high-compression engines

Premium 95 offers higher octane rating than standard unleaded, providing better performance and efficiency for vehicles designed to use it.

Benefits:
  • Better engine performance
  • Improved fuel economy in compatible vehicles
  • Reduced engine knock
When to use: Turbocharged vehicles, high-performance engines, vehicles requiring premium fuel

Premium 98 (P98)

Best for: High-performance and sports vehicles

Premium 98 is the highest octane fuel available, designed for high-performance engines that require maximum power output.

Benefits:
  • Maximum engine performance
  • Best for high-compression engines
  • Optimal for sports cars
When to use: Sports cars, luxury vehicles, high-performance engines

Diesel (DSL)

Best for: Diesel vehicles

Diesel fuel is specifically designed for diesel engines, offering better fuel economy for long-distance driving.

Benefits:
  • Better fuel economy
  • Lower CO2 emissions
  • Ideal for long-distance driving
When to use: Diesel vehicles, long commutes, towing

E10 (10% Ethanol Blend)

Best for: Vehicles compatible with ethanol blends

E10 is an environmentally friendly fuel option that blends 10% ethanol with 90% unleaded petrol.

Benefits:
  • Lower emissions
  • Often cheaper than standard unleaded
  • Renewable fuel source
When to use: Compatible vehicles, eco-conscious drivers

E85 (85% Ethanol Blend)

Best for: Flex-fuel vehicles

E85 is a high-ethanol blend designed specifically for flex-fuel vehicles that can run on ethanol blends.

Benefits:
  • Significantly lower emissions
  • Renewable fuel source
  • Often cheaper
When to use: Flex-fuel vehicles only

LPG (Liquefied Petroleum Gas)

Best for: Converted vehicles

LPG is a cleaner-burning alternative fuel that can be more economical for converted vehicles.

Benefits:
  • Lower emissions
  • Often more economical
  • Cleaner burning
When to use: LPG-converted vehicles

How to Choose the Right Fuel

1. Check Your Vehicle Manual: Your manufacturer's recommendations are the best guide

2. Consider Your Driving: City vs highway driving affects fuel choice

3. Compare Prices: Use our fuel price comparison tool to find the best deals

4. Think About Performance: Higher octane doesn't always mean better for your vehicle

Fuel Price Comparison Tips

Conclusion

Choosing the right fuel type depends on your vehicle, driving habits, and budget. For most drivers, standard Unleaded 91 is the best choice. However, if your vehicle requires premium fuel, it's important to use it to maintain engine health and performance.

Use our station directory to compare prices across all fuel types and find the best deals in Melbourne.

People also ask

Diesel vs petrol — frequently asked questions

Straight answers on price spreads, towing, city driving, and ownership costs in Australia.

Where can I compare live Melbourne petrol and diesel prices?

Open the station directory or the live fuel map to compare listed pump prices across Melbourne and Victoria before you drive.

How do Melbourne fuel price cycles affect what I pay?

Read Melbourne fuel price cycles and the guides hub to time fill-ups away from spike days.

How is this article different from suburb price pages?

Suburb hubs (for example Craigieburn directory or Sunbury unleaded) focus on live listings; this article explains the wider market.

What should I read next after “Complete Guide to Fuel Types: Which One Should You Use?”?

Return to the fuel blog index for savings guides, diesel explainers, and fleet playbooks.

Transparency and editorial sources

Written by the Petrol Prices Near Me editorial team and aligned with our published methodology, editorial policy, and review cadence.

Topic cluster

Go deeper on fuel economy, reliability, and environmental framing — then validate against live Melbourne and Victoria pump boards.

Live tools

Find the cheapest fuel near you

Open the directory or map to compare diesel and petrol pump boards across Melbourne and Victoria before you commit to a station.