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Is the Lexus NX fuel-efficient?

Yes. Among the current NX lineup, the hybrid and plug-in hybrid variants deliver the strongest fuel economy, while the base gasoline NX is still reasonably efficient for a luxury compact SUV. Real-world results depend on driving style, wheel choice, and whether you regularly plug in the PHEV.


Fuel efficiency by powertrain


The following breakdown reflects EPA estimates for the latest Lexus NX models (varying mildly by drivetrain and wheel size). Use these numbers as a baseline to compare how you’ll likely perform in daily driving.


NX 250: Gasoline option


Fuel economy for the base gas-powered NX 250 is solid for its class, but it trails the hybrids in overall efficiency.



  • NX 250 (gasoline, 2.5L inline-4): EPA-estimated around 24 mpg city / 31 mpg highway / 27 mpg combined with front-wheel drive; all-wheel drive typically lowers combined mpg by a small amount.


In short, the NX 250 provides respectable fuel economy for a luxury compact SUV, but if maximizing efficiency is a priority, the hybrid options are notably more economical.


NX 350h: Hybrid


The hybrid model pairs a gasoline engine with electric assist for significantly improved efficiency, especially at steady speeds and in urban driving.



  • NX 350h (hybrid): EPA-estimated around 38 mpg combined, with variations depending on drivetrain and wheel setup (roughly 37–39 mpg in typical configurations).


The NX 350h generally delivers a strong boost in efficiency over the gas-only version, making it a compelling choice for buyers seeking better real-world mileage without plugging in.


NX 450h+: Plug-in Hybrid (PHEV)


The plug-in variant adds a substantial electric-only capability, offering the highest potential fuel savings for short daily trips and commuters who can plug in regularly.



  • NX 450h+ (plug-in hybrid): EPA-estimated up to 84 MPGe combined when running on electricity and gasoline; electric-only range typically around 30–37 miles depending on configuration; once the battery is depleted, efficiency trends toward the hybrid range (roughly 30–34 mpg in gasoline mode, depending on conditions).


In everyday use, the NX 450h+ shines for short commutes and households with charging access, delivering very low gasoline use for many trips.


Real-world considerations


Several factors influence actual fuel economy beyond EPA ratings. Driving style (gentle acceleration, moderate speeds), city versus highway mix, climate control use, and tire/wheel choices can all shift results. AWD versions typically sip more fuel than their FWD counterparts, and frequent charging of the NX 450h+ can maximize its efficiency upside.


Summary


Overall, the Lexus NX is most fuel-efficient when equipped with hybrid or plug-in hybrid powertrains. The NX 350h offers a meaningful efficiency advantage over the NX 250, while the NX 450h+ can achieve very high efficiency in everyday use if you regularly plug in and drive within its electric range. For buyers prioritizing economy, the hybrid and plug-in hybrid variants are the strongest options in the NX lineup, though real-world results will depend on your charging habits and driving patterns.

Is the Lexus NX just a RAV4?


Toyota's RAV4 is an extremely popular utility available with a hybrid powertrain. The Lexus NX, which shares a platform with the RAV4, ups the standard equipment but includes shorter warranty coverage.



Does Lexus NX really need premium gas?


When it comes time to fill up, the Lexus NX requires premium unleaded gasoline. You should be looking for an octane rating of 91 or higher, to ensure the NX runs efficiently while providing the best possible performance. Any gas used in the NX should not contain any higher than 15% ethanol.



Is the Lexus NX good on gas?


Thanks to its EPA-estimated 84 MPGe rating, the 2022 Lexus NX Plug-In Hybrid is the most fuel-efficient SUV in the Lexus lineup.



What are the nx 300's common problems?


The owner comments describe problems respondents experienced with this vehicle.

  • Brakes.
  • Noises/Leaks.
  • Engine Major.
  • Climate System.
  • Electrical Accessories.
  • In-car Electronics.
  • Drive System.
  • Suspension/Steering.


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.