Choosing the right fuel for your car is key to maintaining performance, efficiency, and longevity. If you drive a Subaru or are considering purchasing one, understanding which fuel types are suitable for Subaru vehicles can help you save money, avoid damage, and keep your car running at its best. This guide to Subaru fuel types will break down everything you need to know about fuel requirements for various Subaru models, including petrol, hybrid, and performance vehicles.
Why Fuel Type Matters for Your Subaru
Using the correct fuel type for your Subaru isn’t just a recommendation—it’s essential for performance, fuel efficiency, and long-term durability. Subaru vehicles are designed with specific engines, including their renowned Boxer engines, which operate optimally when filled with the correct fuel grade.
Using the wrong fuel can lead to:
- Reduced Engine Efficiency: Poor performance and increased fuel consumption.
- Potential Engine Damage: Low-quality or incorrect fuel can cause knocking and long-term wear.
- Higher Emissions: Using improper fuel can increase harmful emissions, reducing environmental benefits.
To get the most out of your Subaru, always follow the fuel recommendations provided in your owner’s manual.
Subaru Petrol Engines and Recommended Fuel
Most Subaru models run on unleaded petrol, but the required fuel grade can vary depending on the engine and trim level. Here’s a breakdown of the most common petrol grades and how they apply to Subaru vehicles:
1.91 RON (Regular Unleaded)
For many Subaru vehicles, 91 RON (Research Octane Number) is the standard fuel requirement. It’s widely available in Australia and provides sufficient performance for Subaru models designed to run on regular unleaded petrol.
Models that use 91 RON:
- Subaru XV/Crosstrek (base trims)
- Subaru Forester
- Subaru Outback (non-turbo trims)
2. 95 RON (Premium Unleaded)
Some Subaru engines, particularly those with more advanced fuel systems, require 95 RON premium unleaded petrol. This fuel has a higher octane rating, which prevents knocking and allows the engine to perform more efficiently.
Models that require 95 RON:
- Subaru Outback XT (Turbocharged)
- Subaru WRX (entry-level trims)
3. 98 RON (High-Performance Premium Unleaded)
For Subaru’s high-performance vehicles, such as those with turbocharged engines, 98 RON high-octane petrol is recommended to achieve maximum performance and protection for the engine.
Models that require 98 RON:
- Subaru WRX STI
- Subaru BRZ (performance trims)
- Subaru Levorg
Using lower-octane fuel in models that require 95 or 98 RON can lead to engine knocking, decreased power, and higher fuel consumption. Always check the fuel cap or owner’s manual to confirm the recommended fuel type for your Subaru.
Fuel Efficiency and Requirements for Subaru e-Boxer Hybrid Models
Subaru’s hybrid vehicles, like the Subaru Crosstrek Hybrid and Subaru Forester Hybrid, feature the e-Boxer powertrain, which combines a petrol Boxer engine with an electric motor. These hybrid models use regular 91 RON unleaded petrol, making them cost-effective to run while offering improved fuel efficiency.
Benefits of Subaru Hybrid Vehicles
- Better Fuel Economy: The electric motor reduces petrol consumption during urban driving and stop-start conditions.
- Lower Emissions: Hybrid technology lowers CO2 emissions compared to conventional petrol-only vehicles.
- Smooth Driving: Subaru’s e-Boxer system seamlessly switches between electric and petrol power, providing a smoother ride.
If you’re driving a Subaru hybrid, you’ll still visit the petrol station, but you’ll enjoy fewer trips overall thanks to improved fuel efficiency.
Can You Use E10 Fuel in Your Subaru?
E10 fuel, which contains 10% ethanol mixed with regular unleaded petrol, is widely available in Australia. Many modern Subaru vehicles are compatible with E10 fuel, but it’s always best to check your owner’s manual or the label near your fuel cap for confirmation.
Subaru Models Compatible with E10 Fuel
Most Subaru vehicles manufactured after 2000 can use E10 without issue. These include:
- Subaru Forester
- Subaru XV/Crosstrek
- Subaru Outback
Should You Use E10 Regularly?
While E10 is cheaper and more environmentally friendly, it does have slightly lower energy content than pure petrol, which can lead to a minor reduction in fuel economy. If you want maximum efficiency, using 91 RON or higher is recommended.
Tips for Getting the Most Out of Your Subaru’s Fuel
No matter which Subaru model you drive, here are some tips to improve fuel efficiency and performance:
1. Use the Recommended Fuel: Always use the fuel grade specified in your owner’s manual to prevent engine issues.
2. Drive Smoothly: Avoid aggressive acceleration and braking, as this consumes more fuel.
3. Keep Tyres Properly Inflated: Under-inflated tyres increase resistance, which reduces fuel efficiency.
4. Regular Servicing: Follow the maintenance schedule to ensure your engine, filters, and fuel system remain in top condition.
5. Lighten the Load: Avoid carrying unnecessary weight, as this can impact fuel economy.
Subaru’s Commitment to Efficiency and Performance
Subaru vehicles are designed to offer an excellent balance of performance, efficiency, and reliability. Whether it’s a high-performing WRX, a family-friendly Outback, or an eco-conscious hybrid like the Crosstrek Hybrid, Subaru prioritises engines that maximise fuel efficiency without compromising on power.
By using the correct fuel type, you can ensure your Subaru runs optimally while reducing long-term maintenance costs and enjoying the smooth driving experience Subaru vehicles are known for.
Choosing the Right Fuel for Your Subaru
Understanding Subaru fuel types is essential to keeping your vehicle performing at its best. Whether your Subaru runs on 91 RON, 95 RON, or 98 RON, always stick to the recommended fuel grade. For hybrid drivers, Subaru’s e-Boxer models offer excellent fuel efficiency with regular unleaded petrol.
If you have questions about your Subaru’s fuel requirements or are considering upgrading to a new model, the team at City Subaru is here to help. Contact us or visit our showroom to explore our new Subaru cars for sale. Let us help you find the perfect Subaru for your needs
