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What is the gas mileage on a Lexus ES 300h?

The Lexus ES 300h typically gets about 40 miles per gallon combined in older models, with newer versions often landing in the low-to-mid 40s mpg depending on year, trim and wheel choices. For the exact figure, always check the EPA rating for the specific model year and configuration you’re considering.


The ES 300h is Lexus’s midsize hybrid sedan, pairing a 2.5-liter gasoline engine with electric motors and a battery to improve efficiency without sacrificing luxury. MPG figures vary across generations as the model evolves, but the aim has consistently been strong efficiency within a premium sedan. This article outlines typical EPA estimates, factors that influence real-world mileage, and tips to maximize efficiency.


How the ES 300h achieves efficiency


The ES 300h uses a hybrid system that combines a Atkinson-cycle 2.5-liter engine with electric motors and regenerative braking. The system can run on electric power for short distances and uses energy recovered during braking to recharge the battery. This approach reduces fuel consumption in city driving and contributes to better overall efficiency, especially in stop-and-go conditions.


Model-year guidance


First generation ES 300h (2013–2018)


During its early years, the ES 300h carried EPA ratings around 40 mpg combined, typically cited as 40 mpg city and 39 mpg highway in many trims. Real-world mileage often varies with driving style and tire setup, but this generation established the hybrid’s efficiency target for a luxury midsize sedan.


Second generation ES 300h (2019–present)


With the refreshed design and updated powertrain engineering, newer ES 300h models generally trend toward the low-to-mid 40s mpg combined, with EPA estimates that can vary by wheel size and driving mode. Consumers often see real-world mileage in the upper 30s to mid-40s, depending on conditions. Always verify the exact EPA rating for a specific year/trim you’re considering.


Maximizing fuel economy


Owners can influence real-world mileage through several practical steps. Below are key practices that tend to yield the best efficiency from the ES 300h:



  • Keep tire pressures at the recommended level to reduce rolling resistance.

  • Use Eco or similar fuel-economy modes when appropriate to encourage smoother throttle response and gentler acceleration.

  • Avoid aggressive acceleration and prolonged high-speed driving, which increase fuel use.

  • Plan routes to minimize stop-and-go traffic and unnecessary idling; utilize regenerative braking by anticipating traffic flow.

  • Maintain the vehicle well: timely oil changes, clean air filters, and battery health contribute to optimal efficiency.


Real-world mileage depends on driving habits, terrain, climate, and load, so results can vary from the tested EPA figures.


Where to verify the exact mpg for your car


The most reliable source for model-year-specific mileage is the EPA’s Fuel Economy website (fueleconomy.gov). Enter the exact year, trim, and drivetrain to view official city/highway/combined ratings. You can also consult the window sticker on a new vehicle or the owner’s manual for official numbers.


Summary


The Lexus ES 300h has long offered solid hybrid efficiency within the luxury midsize segment, typically around 40 mpg combined for older models and edging into the low-to-mid 40s for newer iterations. Exact figures vary by year, trim, and wheel/tire choices, so the best approach is to check the EPA rating for the specific configuration you’re evaluating and apply practical fuel-saving tips to maximize real-world mileage.

What are common 300h problems?


Poor engine idling/misfiring
If you are having any problems with the engine misfiring and poor engine idling, this will be caused by a problem with either the throttle body, or MAF (Mass Air Flow) sensor. These can become clogged up with carbon, resulting in the above problems.



How many miles per gallon does the ES 300h get?


The Lexus ES300h's real-world MPG varies by year and driving conditions, but recent models typically achieve around 43-44 MPG combined. The EPA-estimated combined rating for the 2025 model is 44 MPG, with 43 MPG in the city and 44 MPG on the highway. Real-world figures reported by drivers are often in the range of 40-47 MPG, depending on factors like city versus highway driving and weather, says Reddit users. 

Model Year Combined MPG
2025 44 MPG (city: 43, highway: 44)
2024 44 MPG (city: 43, highway: 44)
2023 44 MPG (city: 43, highway: 44)
2022 44 MPG (city: 43, highway: 44)
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Factors that can affect MPG:
  • Driving conditions: City driving, with its frequent stops and starts, can result in lower MPG compared to highway driving, though the ES300h's hybrid system is efficient in both scenarios. 
  • Weather: Colder temperatures can negatively impact fuel economy. 
  • Driving habits: Aggressive acceleration and heavy use of air conditioning can lower your MPG. 
  • Vehicle age: Older models may have slightly different fuel economy ratings. For example, the 2013 model is rated at 40 MPG combined. 



How long does a hybrid battery last in a Lexus IS 300h?


Average Life Span of a Lexus Battery
On average, a lead-acid Lexus car battery lasts about three to five years, while the nickel–metal hydride batteries used in Lexus hybrids last an average of eight to 10 years or 100,000 to 150,000 miles.



Is Lexus ES basically a Camry?


No, the Lexus ES is not a Camry, but they share the same platform and some mechanical components because Lexus is the luxury division of Toyota. The ES is a more premium version, featuring a more luxurious interior, better materials, a quieter ride, and a more powerful standard engine.
 

  • Platform and powertrain: The ES and Camry have historically shared the same platform, and many modern versions use a similar platform and powertrains. For example, the Lexus ES 350 and many Toyota Camry models use a similar 3.5L V6 engine. 
  • Luxury and features: The ES is designed to be a luxury sedan, with a more premium and quiet interior, higher-quality materials, and a softer ride compared to the sportier or more mainstream focus of the Camry. 
  • Positioning: The Camry is a mass-market sedan, while the ES is a luxury vehicle. This means the ES comes standard with more luxury features and has a higher price point to reflect its premium positioning. 


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.