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What is the gas mileage on a 2018 Subaru Legacy 2.5 I Premium?

The 2018 Subaru Legacy 2.5i Premium, equipped with a 2.5-liter four-cylinder engine, has an EPA-estimated fuel economy of 25 miles per gallon (mpg) in the city, 34 mpg on the highway, and 29 mpg combined. This makes the 2018 Subaru Legacy 2.5i Premium a fuel-efficient midsize sedan option for those seeking a balance of performance and efficiency.


Detailed Breakdown of the 2018 Subaru Legacy 2.5i Premium's Gas Mileage


The 2018 Subaru Legacy 2.5i Premium is powered by a 2.5-liter horizontally opposed (boxer) four-cylinder engine that produces 175 horsepower and 174 lb-ft of torque. This engine is paired with a continuously variable transmission (CVT) and Subaru's Symmetrical All-Wheel Drive system as standard equipment.


According to the Environmental Protection Agency (EPA) fuel economy ratings, the 2018 Subaru Legacy 2.5i Premium achieves the following:



  • City fuel economy: 25 mpg

  • Highway fuel economy: 34 mpg

  • Combined fuel economy: 29 mpg


These figures are based on the EPA's testing procedures, which simulate real-world driving conditions to provide consumers with accurate and comparable fuel economy estimates for different vehicle models. The 2018 Subaru Legacy 2.5i Premium's fuel efficiency is competitive within the midsize sedan segment, offering a balance of performance and efficiency that appeals to many buyers.


Factors Affecting the 2018 Subaru Legacy 2.5i Premium's Gas Mileage


Several factors can influence the actual fuel economy experienced by drivers of the 2018 Subaru Legacy 2.5i Premium, including:



  • Driving Conditions: Factors such as traffic, terrain, and weather can impact a vehicle's fuel efficiency. Aggressive driving, frequent stops and starts, and driving in extreme temperatures can all reduce the Legacy's real-world mpg.

  • Maintenance: Proper maintenance, such as regular oil changes, tire rotations, and keeping the engine tuned, can help maintain the Legacy's fuel efficiency over time.

  • Accessories and Load: The use of roof racks, towing a trailer, or carrying heavy cargo can increase the vehicle's weight and aerodynamic drag, leading to lower fuel economy.


It's important to note that individual driving habits and conditions can cause the actual fuel economy of the 2018 Subaru Legacy 2.5i Premium to vary from the EPA's estimates. However, the Legacy's combination of a fuel-efficient engine, standard all-wheel drive, and advanced transmission technology make it a solid choice for those seeking a practical and efficient midsize sedan.

Is a Subaru Legacy good on gas?


Subaru Legacy
It's a midsize sedan that delivers a smooth ride and excellent gas mileage. Gas Mileage: Approximately 27 MPG city / 35 MPG highway.



Why is Subaru discontinuing the Legacy?


The reason for discontinuing is for the decrease in demand for mid-size sedans, and they want to put more energy towards EVS and SUVS.



Does Subaru 2.5 Turbo engine require premium gas?


However, the engines found in the Subaru BRZ, the Subaru WRX, and the Subaru WRX STI are built for higher compression with a powerful turbocharger -- as a result, regular fuel can be problematic in these engines. Instead, premium gas is required.



What is Subaru replacing the Legacy with?


At the moment, no direct replacement for the Legacy is in sight. In its announcement of the model's end, Subaru said "[the] discontinuation reflects market shifts from passenger cars to SUVs and crossovers and Subaru's transition to electrified and fully electric vehicles.



Is the Subaru 2.5 I engine reliable?


The Subaru 2.5 Turbo Engine is a reliable and powerful engine that has proven itself to be a reliable choice for many car owners. However, as with any engine, it is not without its faults. Common issues include oil starvation, coolant leaks, and head gasket failure.



What is the life expectancy of a Subaru Legacy?


200,000 miles
Legacy: The Subaru Legacy is a midsize sedan known for its reliability and durability. With proper maintenance, Legacy models can easily last well beyond 200,000 miles, providing years of dependable service.



What is the MPG on a 2018 Subaru Legacy 2.5 I?


25 City / 34 Hwy
Average Price Paid

Exterior ColorsSee how they look »
DrivetrainAll Wheel Drive
TransmissionAutomatic
MPG25 City / 34 Hwy
Body StyleSedan



What is the difference between 2.5 I and 2.5 I premium?


The 2.5i comes with black folding side mirrors while the 2.5i Premium comes with body-color folding side mirrors. Get a 6-way manually adjustable driver's seat with the 2.5i and a 10-way power adjustable driver's seat with the 2.5i Premium.



How long will Subaru 2.5 engine last?


200,000 miles
Engine Lifespan: Subaru engines are known for their durability and longevity, with many drivers reporting engines that last well beyond 200,000 miles with proper maintenance. The key to extending the lifespan of your Subaru engine is regular maintenance, including oil changes, fluid checks, and tune-ups.



How many miles per gallon does a Subaru Legacy 2.5 L get?


See the full breakdown of the Subaru Legacy mpg ratings for each powertrain below: 2.5L SUBARU BOXER® 4-Cylinder Engine: 27 mpg city / 35 mpg highway / 30 mpg combined* 2.4L Turbocharged SUBARU BOXER® 4-Cylinder Engine: 23 mpg city / 31 mpg highway / 26 mpg combined*


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.