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What is the gas mileage on a Lexus RX 350h hybrid?

The Lexus RX 350h, a hybrid version of the popular luxury SUV, boasts impressive fuel efficiency. According to the latest data, the Lexus RX 350h can achieve an estimated 31 miles per gallon (mpg) in the city and 28 mpg on the highway, for a combined rating of 30 mpg.


Exploring the Lexus RX 350h's Fuel Economy


The Lexus RX 350h is a mid-size luxury crossover SUV that combines a gasoline engine with an electric motor to provide a more efficient driving experience. The hybrid powertrain, which includes a 2.5-liter four-cylinder engine and a pair of electric motors, allows the RX 350h to deliver better fuel economy compared to its non-hybrid counterpart, the Lexus RX 350.


According to the 3 EPA estimates, the Lexus RX 350h achieves 31 mpg in the city, 28 mpg on the highway, and a combined rating of 30 mpg. This represents a significant improvement over the standard RX 350, which is rated at 20 mpg in the city, 27 mpg on the highway, and a combined 23 mpg.


Factors Influencing the RX 350h's Fuel Efficiency


The Lexus RX 350h's impressive fuel economy is the result of several factors:



  • Hybrid Powertrain: The combination of a gasoline engine and electric motors allows the RX 350h to optimize power delivery and reduce fuel consumption, especially in stop-and-go city driving.

  • Regenerative Braking: The RX 350h's regenerative braking system captures energy during deceleration and stores it in the battery, reducing the need for the gasoline engine to provide all the power.

  • Lightweight Materials: The use of lightweight materials, such as aluminum and high-strength steel, helps to reduce the overall weight of the vehicle, improving fuel efficiency.

  • Aerodynamic Design: The RX 350h's aerodynamic body design, including features like an active grille shutter, helps to minimize air resistance and improve fuel economy at higher speeds.


These factors, combined with Lexus' engineering expertise, have allowed the RX 350h to deliver exceptional fuel efficiency without sacrificing the luxury and performance that Lexus customers expect.


Comparing the RX 350h to Competitors


When compared to other luxury hybrid SUVs, the Lexus RX 350h stands out as a fuel-efficient option. For example, the BMW X5 xDrive45e plug-in hybrid is rated at 50 MPGe (miles per gallon equivalent) in electric-only mode, but only 20 mpg in hybrid mode. The Acura MDX Sport Hybrid, on the other hand, achieves 27 mpg in the city and 27 mpg on the highway, slightly lower than the RX 350h.


The Lexus RX 350h's combination of luxury, performance, and impressive fuel economy makes it a compelling choice for eco-conscious drivers in the market for a premium SUV.

What is the electric range of the Lexus RX 350h?


The plug-in hybrid model is new this year and has an all-electric range of 60 km, and a combined fuel consumption of 6.7 L/100 km when that battery is depleted.



Does the RX 350h require premium gas?


The Lexus RX's Gas Requirements
Most 2024 and 2023 models require premium unleaded gas with an octane rating of 91 or higher. Models released between 2012 and 2022 use unleaded gasoline with an octane rating of 87 or higher. That means that while you can use premium gasoline in older RX models, it isn't required.



What is the difference between Lexus 350h and 450h?


A major difference between the two is seen in the engine and performance with the RX 350h equipped with a 246hp 2.5L 4-cylinder engine with Lexus Hybrid Electric Drive and the RX 450h+ having a 304hp 2.5L 4-cylinder engine with Lexus Plug-in Hybrid Electric Drive.



How big is the gas tank on a 2024 Lexus RX 350h?


17.2 gallon
17.2 gallon fuel tank capacity.



How many miles can a Lexus RX 350 get on a full tank of gas?


2022 Lexus RX 350 Driving Range
The 2022 Lexus RX 350 has a max range of at least 570 miles using the hybrid version. Owners of the Lexus RX 350 can expect an estimated 27 miles per gallon when driving on the highway and 20mpg around the city to make a combined 23mpg.



What is the difference between 350h and 450h?


A major difference between the two is seen in the engine and performance with the RX 350h equipped with a 246hp 2.5L 4-cylinder engine with Lexus Hybrid Electric Drive and the RX 450h+ having a 304hp 2.5L 4-cylinder engine with Lexus Plug-in Hybrid Electric Drive.



Which Lexus hybrid has the best MPG?


The Lexus ES 300h sedan is the undisputed champion when it comes to fuel efficiency in the 2025 Lexus hybrid lineup. This mid-size luxury sedan combines a 2.5-liter four-cylinder gasoline engine with an electric motor, resulting in an impressive EPA-estimated combined fuel economy rating of 44 MPG.



What happens if you put regular gas in a Lexus Hybrid?


Use of unleaded gasoline with an octane rating lower than what is listed for your model year vehicle could potentially result in engine knocking. If the octane rating used is less than required, damage to the engine may occur and which could void the vehicle warranty.



How many miles per gallon does a Lexus RX 350h hybrid get?


We've listed the Lexus RX hybrid mpg ratings below: 2024 Lexus RX 350h AWD: 37 mpg city / 34 mpg highway. 2024 Lexus RX 350h Premium AWD: 37 mpg city / 34 mpg highway. 2024 Lexus RX 350h Premium+ AWD: 37 mpg city / 34 mpg highway.



How many miles per gallon does the 2024 Lexus RX 450H+ plug-in hybrid get?


35 mpg combined
The EPA rates the 2024 Lexus RX 450H+ at 35 mpg combined when running on hybrid power and 83 MPGe when including electric driving. One of the reasons for this excellent fuel efficiency is the all-electric driving range of 37 miles, during which the 450H+ doesn't need to use any gasoline.


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.