The Ultimate Guide to Boosting Your Subaru Legacy MPG

Hey there, Subaru Legacy owners! Are you tired of constantly filling up your gas tank and watching your hard-earned money go down the drain? We hear you. Luckily, there are several ways you can boost your Subaru Legacy’s MPG, which ultimately means you’ll spend less money on gas and more on the things that matter most to you. So, whether you’re looking to be a more environmentally-conscious driver or you just want to save some extra cash, you’ve come to the right place. In this comprehensive guide, we’ll explore various tips and tricks to help you increase your Subaru Legacy MPG.

Subaru Legacy car

First, let’s talk about why improving your MPG is important. Not only does it save you money on gas, but it also helps to reduce your carbon footprint. Vehicles emit harmful greenhouse gases, contributing to climate change and air pollution. By driving a more fuel-efficient vehicle and implementing various MPG-boosting techniques, you can do your part in reducing these negative impacts on the environment. Plus, who can argue with the added bonus of money saved? Let’s dive in!

Introduction to Subaru Legacy MPG

The Subaru Legacy has been a staple in the sedan market since its introduction in 1989. The Legacy was initially produced as a replacement for the Leone, and it has since become one of Subaru’s best-selling vehicles. The Legacy has undergone several redesigns over the years, and its most recent generation was introduced in 2020. One of the most significant factors to consider when purchasing a car is fuel economy, and the Subaru Legacy MPG is an essential aspect of the vehicle’s performance.

What is Subaru Legacy?

The Subaru Legacy is a mid-size sedan that offers comfort, style and all-terrain capabilities. It features Subaru’s signature Symmetrical All-wheel Drive, which provides exceptional handling and traction. The Legacy also offers an EyeSight driver assistance suite, which includes adaptive cruise control, pre-collision braking, lane departure warning, and lane-keeping assist.

The Legacy has been recognized for its overall quality and reliability, ranking high in several automotive industry surveys, including J.D. Power and Consumer Reports. The Subaru Legacy is an ideal vehicle for customers who prioritize performance, safety, and value.

What is MPG?

MPG stands for ‘Miles per Gallon’ and it is a measure of how far your vehicle can travel per gallon of fuel. The higher the MPG, the more miles you can travel on a single gallon of gas. MPG is an essential consideration for anyone looking to buy a car, especially for those who drive long distances or commute frequently.

Having a car with a high MPG can save car owners a considerable amount of money on gas, which can add up to significant savings over time. Additionally, having a car with good MPG means that it is more environmentally friendly, as less fuel consumption translates to fewer emissions being released into the atmosphere.

Why is MPG important for Subaru Legacy?

As a mid-size sedan, the Subaru Legacy is primarily used as a family car, and it is often expected to deliver both comfort and performance. Families typically drive their cars more frequently than others, making fuel economy a crucial factor when considering which sedan to purchase.

The Subaru Legacy offers competitive fuel economy, with an EPA estimated 27 miles per gallon in the city and 35 miles per gallon on the highway. The Legacy’s fuel economy performance is due to Subaru’s advanced BOXER engine technology, which allows for superior performance and fuel efficiency. The Legacy’s impressive fuel economy is a significant advantage for families, as it can save them money in the long run while reducing their carbon footprint.

In conclusion, the Subaru Legacy MPG is a crucial factor to consider for families and anyone looking for a mid-size sedan that offers both value and performance. The Legacy’s fuel efficiency, combined with its advanced technology, safety features, and overall quality, make it a top choice in the market.

Factors Affecting Subaru Legacy MPG

The Subaru Legacy is known for its impressive fuel efficiency, with an EPA-rated 30 combined MPG for the 2021 model. However, there are several factors that can affect your Subaru Legacy MPG, including driving style and habits, vehicle maintenance, and vehicle features and specs. By understanding these factors, Legacy owners can take steps to improve their fuel efficiency and save money on gas.

Driving Style and Habits

Your driving style and habits have a significant impact on your Subaru Legacy MPG. Aggressive driving, such as speeding and rapid acceleration, can reduce your fuel efficiency by up to 30% on the highway and 40% in urban areas. This is because these driving habits waste fuel by consuming more energy to maintain higher speeds and sudden stops, causing the engine to work harder than necessary.

To improve your Subaru Legacy MPG, consider adopting a fuel-efficient driving style. This involves maintaining a steady speed, avoiding rapid acceleration and sudden stops, and staying within the recommended speed limit. You can also improve your Legacy’s fuel efficiency by avoiding idling for prolonged periods, especially during cold weather, as this wastes fuel and reduces your MPG.

Vehicle Maintenance

Proper vehicle maintenance is crucial for maintaining your Subaru Legacy’s fuel efficiency and saving money on gas. Regular maintenance, such as oil changes, air filter replacements, and tire rotations, can improve your MPG by up to 10%. This is because a well-maintained vehicle runs more efficiently, reducing unnecessary fuel consumption and engine strain.

To improve your Subaru Legacy MPG with proper vehicle maintenance, make sure to follow the manufacturer’s recommended maintenance schedule. This involves scheduling regular maintenance appointments and addressing any issues, such as a malfunctioning oxygen sensor or tire pressure, promptly. Additionally, you can improve your Legacy’s fuel efficiency by keeping it clean, using the recommended fuel grade, and reducing your vehicle’s weight by removing any unnecessary cargo or equipment.

Vehicle Features and Specs

The specific features and specs of the Subaru Legacy can also impact your MPG. For example, Legacy models with all-wheel-drive typically have lower fuel efficiency than front-wheel-drive models, as the additional drivetrain components require more energy to operate. Additionally, using your Legacy’s air conditioning or heating system can also reduce your fuel efficiency by increasing your vehicle’s energy consumption.

To improve your Subaru Legacy MPG with specific features and specs, consider choosing a trim level with a lower curb weight or fewer luxury features, as these can increase your vehicle’s fuel efficiency. Additionally, you can improve your Legacy’s fuel efficiency by minimizing the use of your vehicle’s air conditioning or heating system, opening windows instead or limiting use only when necessary.

By understanding how driving style, vehicle maintenance, and vehicle features and specs can impact your Subaru Legacy MPG, you can take steps to improve your fuel efficiency and save money on gas. These steps can range from small adjustments to major changes, but the end result is worth it: a more efficient, cost-effective, and eco-friendly vehicle.

Subaru Legacy MPG Comparison to Other Cars in its Class

The Subaru Legacy has been known to be one of the most reliable and fuel-efficient midsize sedans in the market today. It is a car that may not be as popular as its rivals, but it surely has something that sets it apart from the rest. One of the most significant features of the Subaru Legacy is its impressive fuel economy ratings, which is why we will be comparing its MPG to other cars in its class and other all-wheel-drive cars. We will also provide a summary of real-world MPG for the Subaru Legacy, based on reviews and user experiences.

Comparison to Other Midsize Sedans

When compared to other midsize sedans in its class, the Subaru Legacy comes out on top in terms of fuel efficiency. According to the EPA, the 2021 Subaru Legacy has an average fuel economy rating of 30 MPG combined (27 city/35 highway) for its base 2.5-liter four-cylinder engine. This rating is better than the Toyota Camry’s 29 MPG combined (28 city/39 highway), Honda Accord’s 30 MPG combined (28 city/34 highway), and even the Mazda6’s 26 MPG combined (24 city/32 highway).

However, the Subaru Legacy does have a competitor regarding fuel economy in the form of the Hyundai Sonata Hybrid. The hybrid version of the Sonata has an enormous advantage when it comes to MPG since it has an average combined fuel economy of 47 MPG (45 city/51 highway). Nonetheless, Subaru’s standard non-hybrid Legacy engine still provides a great balance of performance and fuel economy better than its competition.

Comparison to Other All-Wheel Drive Cars

One of the Subaru Legacy’s strong selling points is its Symmetrical All-Wheel Drive (AWD) system. The Symmetrical AWD comes standard on every Legacy model, making it one of the few all-wheel-drive midsize sedans in its class. However, such all-wheel-drive systems have traditionally come with a penalty in fuel economy, but the Legacy’s standard AWD drivetrain still delivers impressive fuel economy.

When compared to other all-wheel-drive cars in its class, such as the Ford Fusion AWD and the Toyota Camry AWD, the Subaru Legacy still comes out on top in terms of fuel economy, with an EPA rating of 27 MPG combined (24 city/32 highway) for its higher-performance 2.4-liter turbocharged four-cylinder engine which tops its competition.

Real World MPG for Subaru Legacy

The EPA MPG ratings are laboratory numbers, and the actual fuel economy ratings may differ based on driving conditions and personal habits. Real-world MPG ratings are based on reviews and user experiences, which provide a more accurate perspective on the fuel efficiency of the vehicle.

Based on data collected from real-world drivers, the 2021 Subaru Legacy has an overall fuel economy rating of 31 MPG, which is one mile per gallon higher than its rated value by the EPA. The data indicate that the Legacy is an impressive car that delivers good MPG figures both on the highway and in the city.


The Subaru Legacy is indeed one of the most fuel-efficient cars in its class. It delivers excellent fuel economy, whether compared to other midsize sedans or all-wheel-drive vehicles. The Legacy’s real-world MPG rating is impressive, making it an excellent choice for those who want to maximize their MPG without sacrificing performance and comfort. If you are looking for a fuel-efficient car with all-wheel drive, the Subaru Legacy should be on top of your list!

Tips for Improving Subaru Legacy MPG

The Subaru Legacy is known for its impressive fuel efficiency, but like any other car, there are always ways to improve its MPG. By implementing these tips, you can get more miles per gallon out of your Subaru Legacy and save money on gas in the long run.

Slow Down and Avoid Heavy Acceleration

One of the easiest and most effective ways to improve your Subaru Legacy’s MPG is to slow down and avoid heavy acceleration. When you speed up quickly or push down hard on the gas pedal, your engine has to work harder, which burns more fuel. By driving at a reasonable pace and accelerating gently, you can minimize your fuel consumption.

Another benefit of driving slower and more steadily is that it’s safer. When you’re not in a rush and aren’t trying to beat the clock, you’re less likely to get into an accident. Plus, driving calmly and patiently can help you enjoy the journey more and reduce stress.

Avoid Carrying Excess Weight

Another factor that can affect your Subaru Legacy’s fuel efficiency is the weight you’re carrying in the car. The more weight you add to your car, the harder your engine has to work, which burns more fuel and reduces your MPG. That’s why it’s important to avoid carrying unnecessary items in your trunk or back seat.

If you’re going on a road trip, try to pack light and only bring the essentials. Consider investing in lighter luggage or equipment if you frequently travel with bulky items. You’ll be surprised at how much of a difference it can make to your fuel economy.

Monitor Tire Pressure and Keep Tires Properly Inflated

Proper tire pressure is crucial for maintaining good fuel efficiency in your Subaru Legacy. When your tires are underinflated, they create more resistance and require more power from your engine to move the car, which results in lower MPG. On the other hand, overinflated tires can affect your car’s handling and safety.

To ensure that your Subaru Legacy’s tires are properly inflated, check the pressure regularly and add air if necessary. Your car’s manual should provide recommended tire pressure levels. Consider investing in a tire pressure gauge so that you can easily measure the pressure of your tires whenever you need to.

In conclusion, there are many ways to improve the fuel efficiency of your Subaru Legacy. Slowing down, avoiding heavy acceleration, carrying less weight, and maintaining proper tire pressure are all effective strategies that can save you money on gas and reduce your carbon footprint on the environment. By following these tips, you can enjoy a greener, more efficient ride in your Subaru Legacy.

Subaru Legacy Fuel Economy: A Comprehensive Guide

The Subaru Legacy is an excellent midsize sedan that has earned a reputation for its impressive fuel economy. It’s no secret that fuel efficiency plays a vital role in modern-day driving. As gas prices continue to rise, car buyers are increasingly interested in finding vehicles that deliver optimal fuel efficiency while being reliable and safe to operate. In this article, we’ll cover everything you need to know about the Subaru Legacy MPG, including tips for boosting your fuel efficiency.

What Kind of Fuel Economy Does the Subaru Legacy Deliver?

The Subaru Legacy is well-known for its impressive fuel efficiency. According to the EPA, the Subaru Legacy delivers 27 miles per gallon (mpg) in the city, 35 mpg on the highway, and a combined fuel efficiency of 30 mpg. The Legacy’s fuel efficiency is impressive, especially when compared to other midsize sedans in its class. In fact, the Subaru Legacy’s fuel economy beats out many of its competitors, including the Honda Accord, Toyota Camry, and Mazda6.

It’s worth noting that the fuel economy of your Subaru Legacy may differ from the EPA estimates. Your fuel efficiency will depend on your driving habits, driving conditions, and other factors such as the type of fuel you use, the condition of your vehicle, and the terrain you’re driving on. It’s always best to rely on your own experiences and driving habits to determine your fuel efficiency.

Factors That Affect Your Subaru Legacy’s Fuel Efficiency

Several factors can affect your Subaru Legacy’s fuel efficiency. Here are a few things to keep in mind:

  • Driving Habits: How you drive your Subaru Legacy plays an important role in its fuel efficiency. Aggressive driving, excessive idling, and other bad habits can lead to reduced fuel economy.
  • Terrain: The kind of terrain you’re driving on can affect your Subaru Legacy’s fuel economy. Driving uphill or on rough terrain can lead to lower fuel efficiency.
  • Vehicle Maintenance: Regular vehicle maintenance can help you maintain optimal fuel efficiency. Dirty air filters, worn out spark plugs, and other maintenance issues can lead to lower fuel economy.
  • Tire Pressure: Low tire pressure can increase drag and lower your fuel economy. Keep your tires properly inflated to maintain optimal fuel efficiency.

Tips for Better Fuel Efficiency

If you’re a Subaru Legacy owner looking to improve your fuel economy, here are some tips that can help:

  • Drive Sensibly: Aggressive driving can lower your fuel economy. Avoid sudden acceleration, hard braking, and speeding.
  • Avoid Excessive Idling: Idling wastes fuel and can lead to lower fuel economy. Turn off your engine when you’re parked or waiting for someone.
  • Maintain Your Vehicle: Regular vehicle maintenance like oil changes, air filter replacements, and tire rotations can help you maintain your Subaru Legacy’s optimal fuel efficiency.
  • Use the Right Fuel: Be sure to use the fuel recommended by Subaru for your vehicle. Using the wrong fuel can lead to reduced fuel economy.
  • Check Your Tires: Make sure your tires are properly inflated. Low tire pressure can increase drag and reduce fuel efficiency.


In conclusion, the Subaru Legacy is an impressive midsize sedan that delivers excellent fuel efficiency. With proper maintenance and driving habits, Subaru Legacy owners can improve their fuel economy even further. Follow the tips mentioned in this article to enhance your Subaru Legacy’s fuel efficiency and enjoy even more savings at the pump.

Thank You for Joining Us on Your MPG Journey

We hope this guide has given you all the tools and knowledge needed to enhance your Subaru Legacy’s fuel efficiency. Remember, while there may not be any instant solutions, incremental changes in driving habits, regular maintenance, and smart upgrades can all help your vehicle go the extra mile and save you some gas money in the process.

We’re glad to have been a part of your MPG improvement journey, and we’d love for you to visit us again for more helpful tips and tricks. Stay tuned to our website for more resources dedicated to making your driving experience as pleasant and economical as possible. Until next time, safe and happy driving!


1. Should I switch to a different type of gasoline?

It depends on your car and driving habits. If your car’s owner’s manual recommends using premium gasoline, then it’s best to stick with that. If not, you might save some money by using regular gasoline. However, keep in mind that some drivers report better performance and fuel economy when using higher-octane gasoline.

2. Can tire pressure affect fuel efficiency?

Yes, low tire pressure can reduce fuel efficiency by up to 5%. It’s crucial to keep your tires inflated to their recommended levels to help your car run more efficiently and smoothly.

3. How much can driving speed affect fuel efficiency?

Driving at a higher speed increases air resistance, which can reduce your car’s fuel efficiency. According to the Department of Energy, you can save up to 15% on gasoline by driving at 55 mph instead of 65 mph.

4. Is it worth upgrading to LED headlights for better MPG?

LED headlights use less power than halogen bulbs, which can help improve fuel efficiency slightly. However, the difference might not be significant enough to justify the cost of replacing your headlights.

5. Can regular maintenance help improve fuel efficiency?

Yes, regular maintenance is crucial to keep your car running smoothly and efficiently. Regular oil changes, air filter replacement, and tune-ups can all help improve your car’s fuel economy.

6. How can I improve my Subaru Legacy’s aerodynamics?

Installing a rear spoiler or chin spoiler can help improve your car’s aerodynamics and reduce wind resistance, thereby improving fuel economy.

7. Does the type of oil I use affect fuel efficiency?

Using a high-quality synthetic motor oil can help improve fuel efficiency and engine performance. Check your car’s owner’s manual to see what type of oil is recommended.

8. How can I improve my driving habits to increase fuel efficiency?

Avoid aggressive driving and sudden acceleration or braking. Maintain a consistent speed and use cruise control on highways, if possible.

9. Does carrying extra weight affect fuel efficiency?

Yes, carrying extra weight, such as luggage or heavy equipment, can reduce your car’s fuel efficiency. Remove unnecessary items from your car to improve fuel economy.

10. Should I use the air conditioning or windows down for better MPG?

Driving with windows down can increase air resistance, which can reduce fuel efficiency. However, using the air conditioning also uses fuel. It’s best to balance your comfort level with fuel efficiency by using the air conditioning sparingly and rolling down the windows when possible.