Katerina Swanson
With gas prices on the rise, it's no surprise that fuel economy is a key consideration for many when buying a car. While electric vehicles are an increasingly popular option, they don't work for everyone. So, what used car gets the best fuel mileage? There are several options to consider, from the classic Toyota Prius, which has been a dependable choice for over a decade, to the 2017 Hyundai Ioniq Hybrid, which boasts an impressive 57 city/59 highway/58 combined MPG. The 2010 Toyota Prius is also a budget-friendly option, with 51 city/48 highway/50 combined MPG. For those seeking a luxury vehicle, the Lexus ES Hybrid offers great fuel economy for its class, with official fuel economy ratings of 44 MPG.
| Characteristics | Values |
|---|---|
| Best fuel mileage for a used car in 2025 | Toyota Prius Plug-In Hybrid |
| Best fuel mileage for a used car in 2017 | Hyundai Ioniq Hybrid |
| Best fuel mileage for a used car in 2016 | Kia Niro |
| Best fuel mileage for a used car in 2010 | Toyota Prius |
| Best fuel mileage for a used car (no year specified) | Honda Insight |
| Best fuel mileage for a used SUV | Kia Niro |
| Best fuel mileage for a used car under $15,000 | Kia Niro |
| Best fuel mileage for a used car under $10,000 | 2016 Chevrolet Spark, 2010 Ford Fusion Hybrid |
| Best fuel mileage for a used car under $20,000 | 2017 Hyundai Ioniq Hybrid, 2017 Kia Niro, 2010 Toyota Prius, Honda Insight, Hyundai Elantra |
| Car brand with a range of fuel-efficient cars | Toyota, Honda |
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What You'll Learn
Toyota Prius
When it comes to used cars with the best fuel mileage, the Toyota Prius is a standout option. With a history spanning over two decades, the Prius was introduced in 1997 as the world's first mass-produced gasoline-electric hybrid car. Its combination of an electric motor and a high-efficiency engine has made it a leader in fuel efficiency, with some models delivering impressive mileage.
The Toyota Prius Plug-In Hybrid, formerly known as the Prius Prime, boasts EPA ratings of 52 mpg in gas/hybrid mode. This model, equipped with a 2.0-liter four-cylinder engine, two electric motors, and a lithium-ion battery, offers both sleek styling and impressive fuel economy. In its most efficient base trim, it provides an all-electric range of 44 miles.
The Prius has also proven its efficiency in real-world conditions. In 2024, it set a Guinness World Record for the highest MPG for a coast-to-coast drive in the United States. This record-setting journey covered 3,211.7 miles and included various terrains and challenging weather conditions, showcasing the Prius' ability to achieve great fuel efficiency even in demanding scenarios.
Owners of the Toyota Prius have reported varying mileage figures depending on driving conditions, speed, and model year. For example, a 2022 Prius Prime owner reported achieving 50 to 60 mpg on HV mode. Another owner of a 2008 Gen 2 Prius shared that they consistently achieved approximately 45 mpg with a mix of city and highway driving, and even higher mileage (around 58 mpg) on extended highway trips. These figures align with other reports, such as a 2015 model owner who noted their last tank mileage at 46.9 mpg, and a 2010 model owner who achieved 47.1 mpg.
Overall, the Toyota Prius, particularly the Prius Plug-In Hybrid model, stands out as a used car with exceptional fuel mileage. Its combination of innovative technology, efficient performance, and real-world proof of its fuel economy makes it a top choice for those seeking a fuel-efficient used car.
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Honda Civic
Honda has always been a cornerstone for fuel-efficient cars. The Honda Civic is a fuel-efficient car that delivers powerful yet efficient performance, making it an excellent choice for commuters. The Honda Civic MPG rating has a little variation, with three available trim levels and two transmission options. The Honda Civic fuel economy ratings for each configuration are as follows:
- Civic Sedan Sport with LL-CVT: 30 mpg city/37 mpg highway
- Civic Sedan EX with M-CVT: 33 mpg city/42 mpg highway
- Civic Sedan Touring with LL-CVT: 31 mpg city/38 mpg highway
The 2024 Honda Civic also has impressive fuel efficiency, with the following mileage ratings:
- 2024 Honda Civic LX: 31 mpg city / 40 mpg highway / 35 mpg combined
- 2024 Honda Civic Sport: 30 mpg city / 37 mpg highway / 33 mpg combined
- 2024 Honda Civic EX: 33 mpg city / 42 mpg highway / 36 mpg combined
- 2024 Honda Civic Touring: 31 mpg city / 38 mpg highway / 34 mpg combined
The 2018 Honda Civic also has good fuel efficiency, with the following mileage ratings:
- 28 city/40 highway/32 combined mpg rating for LX model with 6-speed manual transmission
- 31 city/40 highway/34 combined mpg rating for LX & EX CVT models
- 31 city/42 highway/35 combined mpg rating for EX-T model with 6-speed manual transmission
- 32 city/42 highway/36 combined mpg rating for EX-T, EX-L and Touring CVT models
The Honda Civic is a reliable and performance-oriented car, with a refined and spacious interior that enhances every drive. The fuel efficiency of the Honda Civic, combined with its roomy interior, makes it a great choice for weekend getaways and summer road trips.
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Kia Niro
If you're looking for a used car with great fuel mileage, the Kia Niro is an excellent option. The Kia Niro is a hybrid vehicle that offers impressive fuel efficiency and a range of features that make it a top choice in the market.
In 2016, the Kia Niro received a Guinness World Record title for the lowest fuel consumption by a hybrid vehicle. The Niro hybrid achieved an impressive fuel consumption record of 76.6 mpg on a trip from Los Angeles to New York City, beating the previous record held by the 2011 Kia Optima Hybrid. This record speaks to the Niro's exceptional fuel efficiency, which continues to be a standout feature of the vehicle.
The Kia Niro has consistently delivered outstanding fuel economy in real-world usage. On a test route, the Niro achieved 47.7 miles per gallon, falling just short of its EPA estimate of 49 mpg in combined driving. While the Toyota Prius, a competitor in the hybrid vehicle market, achieved 50 mpg on the same route, the Niro still stands as a very fuel-efficient option.
The 2025 Kia Niro continues the legacy of impressive fuel efficiency. It is marketed as a fuel-efficient subcompact crossover SUV with best-in-class MPG in the city. While the exact mileage may vary based on driving conditions and vehicle maintenance, owners of the 2025 model have reported achieving 51.8 mpg and even higher mileage of 53 mpg. This puts the Niro in direct competition with hybrid vehicles like the Toyota Prius and establishes it as a leader in fuel efficiency.
In addition to its exceptional fuel economy, the Kia Niro offers a host of other attractive features. The Niro provides a spacious cabin with ample legroom, both in the front and rear seats, ensuring a comfortable driving and riding experience. It also boasts a generous cargo room of 63.7 cubic feet with the rear seats folded flat, allowing you to carry gear, luggage, and more with ease. The interior incorporates premium materials and SynTex leather, giving it a sleek and elegant feel. The vehicle also comes with a range of tech features, including wireless smartphone charging, Apple CarPlay, and Android Auto compatibility, keeping you connected and entertained during your journeys.
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Lexus ES Hybrid
When it comes to used cars with great fuel mileage, there are several options to consider. The Toyota Prius, for example, is known for its reliability and offers 51 mpg in the city and 48 mpg on the highway. The Honda Fusion hybrid is another excellent choice, rated at 41 mpg in the city and 36 mpg on the highway. For those who prefer SUVs, the Kia Niro stands out with its impressive fuel economy, achieving 52 mpg in the city, 49 mpg on the highway, and 50 mpg combined.
Now, let's focus on the Lexus ES Hybrid, a sleek luxury midsize sedan known for its sporty performance and impressive fuel efficiency. Here are some key details about this vehicle:
The Lexus ES Hybrid offers exceptional fuel economy, with an estimated 44 miles per gallon on the highway for the 2024 model. The 2025 model takes it even further, achieving ratings of 43/44 mpg, according to the EPA. These numbers make the Lexus ES Hybrid a leader in fuel efficiency for luxury vehicles of its size.
The front-wheel-drive Lexus ES 300h is equipped with a 2.5-litre four-cylinder engine, combined with a lithium-ion battery pack and two electric motors. This setup delivers a smooth and comfortable ride while maximising fuel efficiency. The ES is built more for comfort than speed, and its modest power output contributes to its impressive fuel economy.
The Lexus ES Hybrid also stands out for its luxurious features and user-friendly design. The cabin offers a peaceful and spacious environment, with high-quality materials and ample legroom for passengers. The vehicle provides 17.0 cubic feet of room in the trunk, surpassing rivals such as the Volvo S90. Additionally, the Lexus ES Hybrid comes with key safety features, including automated emergency braking and lane-keeping assistance.
When considering a Lexus ES Hybrid, it's important to keep in mind the maintenance costs associated with luxury vehicles. While Lexus vehicles are known for their reliability and longevity, ongoing maintenance can sometimes be a factor. However, Lexus offers longer warranty coverage than some of its rivals, providing added peace of mind.
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Hyundai Elantra
The Hyundai Elantra is a popular choice for those seeking a used car with excellent fuel mileage. The 2023 Elantra is a compact sedan that boasts impressive gas mileage, with a fuel economy rating of an EPA-estimated 33 city and 42 highway mpg with the SE trim level. The SEL and Limited trims offer slightly lower estimates of 30 city and 40 highway mpg, but still provide a commendable driving range.
Real-world data from Elantra owners supports the vehicle's impressive fuel efficiency claims. For example, a 2023 Elantra N-Line owner reported achieving 45.1 mpg on a 229-mile trip while cruising at speeds between 65-75 mph. Another owner of a 2023 Elantra Hybrid reported fuel efficiency ranging from 32-36 mpg when driving at 90 mph, and an impressive 52 mpg when driving at 55 mph.
The Elantra's fuel economy is further enhanced by its fuel tank capacity of up to 12.4 gallons, resulting in a remarkable driving range. With the SE trim level, the Elantra delivers a range of around 409.2 city miles and 520.8 highway miles, or a combined 458.8 miles per tank of gas.
The 2022 Elantra N-Line has also demonstrated impressive fuel efficiency, with one owner reporting an average of 6.8 L/100 km, which equates to approximately 44.3 mpg. Additionally, a 2014 Elantra GT owner reported achieving 35.011 mpg with 80% highway driving, with their best mileage being 41.196 mpg.
Overall, the Hyundai Elantra, particularly the 2023 model, stands out as a used car with exceptional fuel mileage, offering a combination of impressive fuel economy ratings, a spacious fuel tank, and a remarkable driving range.
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Frequently asked questions
The 2010 Toyota Prius ranks first on our list of the most fuel-efficient used cars, with 51 city/48 highway/50 combined mpg. It has been one of the best-selling hybrids for over a decade.
The 2017 Hyundai Ioniq Hybrid is a great choice with 57 city/59 highway/58 combined MPG. The 2016 Chevrolet Spark is also a good option, with 31 city/41 highway/35 combined MPG, and an all-electric variant with 100 MPGe combined. The 2010 Ford Fusion Hybrid is another solid choice, with 41 city/36 highway/39 combined MPG.
The Lexus ES Hybrid is a sleek luxury midsize sedan with excellent fuel economy ratings of 44 mpg. It is a great value for a luxury car and is loaded with user-friendly features.
The Kia Niro is an excellent choice for a used SUV with great fuel mileage. In 2016, it received a Guinness World Record title for the lowest fuel consumption by a hybrid vehicle, with 52 city/49 highway/50 combined MPG.
