Is Lexus NX good on gas?

Yes — it depends on the powertrain. The hybrid and plug-in hybrid variants offer notably strong fuel economy, while the gas-only NX 250 is adequate but less efficient.

To understand the question in detail, it helps to know how the NX’s different engines and drivetrains affect fuel use, and how real-world conditions can change what you see at the pump. The NX lineup includes four main powertrains: NX 250 (gasoline), NX 350 (turbocharged gasoline), NX 350h (hybrid), and NX 450h+ (plug-in hybrid). Each one has its own EPA ratings, electric range (for the PHEV), and real-world behavior.

Powertrains and efficiency

Here is a quick comparison of the main NX variants in terms of fuel economy and energy use. Note that exact numbers vary by model year, equipment, and testing cycle. The ranges below reflect representative figures you may see depending on drivetrain and configuration.

• NX 250 — gasoline: Typically in the high 20s to low 30s mpg combined, with AWD often at the lower end of that range.


• NX 350 — turbocharged gasoline: Generally mid-20s in city, low-30s on the highway, and about high-20s to low-30s mpg combined depending on drive.


• NX 350h — hybrid: Strong fuel economy for the segment, commonly around the high 30s to around 40 mpg combined.


• NX 450h+ — plug-in hybrid: Offers up to about 75 MPGe when running on electricity, with an electric-only range around the mid-to-high 30 miles; after depletion, mpg in hybrid mode is in the low-30s to mid-30s depending on conditions.

In short, the hybrids and plug-in hybrid variants are the clear frontrunners for fuel economy, while the NX 250 and NX 350 deliver respectable efficiency for a luxury SUV, with the hybrid models delivering the biggest savings.

Real-world factors that influence fuel economy

Fuel economy figures are laboratory estimates. Real-world results depend on many variables, including driving style, climate, terrain, tire choice, and whether the vehicle is equipped with front- or all-wheel drive. Urban driving with frequent stops generally yields higher mpg for hybrids, while highway cruising tends to be good for all variants, particularly the hybrids on blended cycles.

How the NX compares to rivals

In the luxury compact SUV segment, the Lexus NX hybrid options are competitive for fuel economy, often edging rivals in efficiency when measured by combined mpg. The plug-in variant adds a practical electric range that lowers gasoline use for daily short trips. Some rivals with similar hybrid systems may offer slightly different mpg or electric ranges, so it’s worth comparing EPA ratings by model year and considering charging availability for a PHEV.

Which NX should you choose for fuel savings?

If your priority is fuel economy, prioritize the NX 350h or NX 450h+ depending on your charging situation. If you mostly drive short trips and can regularly plug in, the NX 450h+ can dramatically reduce gasoline use. For steady, non-plug-in efficiency, the NX 350h is a robust choice. For those who value pure gas mileage and cost and don’t plan to plug in, the NX 250 remains adequate but isn’t the standout in the segment for fuel efficiency.

Bottom line and summary

The Lexus NX delivers solid fuel economy in a luxury compact SUV package, with the hybrids and plug-in hybrid leading the way. If maximum gas mileage is your goal, opt for the hybrid or plug-in hybrid and take advantage of electric driving for city trips. For those who prefer a gas-only model, the NX 250 remains capable but won’t match the efficiency of the hybrid variants. Overall, the NX is a practical choice for buyers who want a mix of luxury features and respectable fuel economy.

Summary

The NX lineup offers a spectrum of efficiency options: the NX 250 (gas) is practical but not the best in class for fuel economy; the NX 350 (turbo gas) balances performance with economy; the NX 350h (hybrid) and NX 450h+ (plug-in hybrid) maximize fuel savings, especially if you can leverage electric driving. Real-world mpg depends on drivetrain, driving style, and charging habits.

Does Lexus NX really need premium gas?

Whether a Lexus NX requires premium gas depends on the model: the NX 350 and NX 350h require premium unleaded gasoline (919191 octane or higher), while the NX 250 uses regular unleaded. Using the correct fuel is crucial for optimal performance and preventing engine damage.
 
Which models need premium gas?

• Lexus NX 350: Requires premium unleaded gasoline with an octane rating of 919191 or higher. 
• Lexus NX 350h: Also requires premium unleaded gasoline with an octane rating of 919191 or higher for optimal performance. 

Which models use regular gas?

• Lexus NX 250: Requires regular unleaded gasoline. 

Why is the correct gas important?

• Engines with a turbocharger, like those in the NX 350 and 350h, are designed for higher-octane fuel. 
• Using regular gas in a model that requires premium can lead to reduced engine performance, engine knocking, and potential damage. 
• If you're unsure which type of gas to use, always consult your owner's manual. 

Which Lexus model is best on gas?

The 2022 Lexus NX Plug-In Hybrid mpg ratings are the best among the current Lexus lineup, followed by the new Lexus ES Hybrid, which offers up to 44 highway mpg. Plus, many hybrid models also offer all-wheel drive capability, giving you the edge you need on California roadways.

Is the Lexus NX fuel efficient?

The 2022 NX 350h all-wheel drive trim level receives an impressive 41 MPG city and 37 MPG on the highway thanks to the Hybrid Electric Drive feature. The NX 350 F Sport Handling all-wheel drive, NX 250, and NX 350 models get between 22-25 city miles per gallon and 28-32 MPG highway.

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.