The 2023 Lexus NX 450h Plus AWD achieves 36 MPG combined, which makes it a strong choice for buyers who want good fuel economy and all-weather capability without giving up luxury. It’s not a bare-bones economy car, and it’s not a gas-guzzling performance SUV. It’s a blend of the two, aimed at buyers who care about refinement and technology and who want to keep their fuel costs down.

City and highway performance

The EPA estimates the NX 450h Plus at 38 MPG in the city and 33 MPG on the highway. This strong city performance comes from the plug-in hybrid powertrain’s ability to operate in electric-only mode at lower speeds, which maximizes efficiency in stop-and-go traffic. The highway number is lower, but it’s still respectable for an all-wheel-drive SUV with these features. The slight dip on the highway reflects the engine’s increased gasoline use at higher speeds and the aerodynamic realities of a vehicle designed for both comfort and utility.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Lexus NX 450h Plus AWD at $1,600. This is based on driving 15,000 miles per year and using national average fuel prices. It’s a good way to compare running costs to other vehicles in its class, but your fuel expenses will vary depending on how you drive, the climate, and fuel prices in your area. $1,600 is a significant saving compared to many conventionally powered luxury SUVs.

Real-world expectations

The EPA figures provide a good baseline, and real-world MPG will always vary. How often you charge the NX 450h Plus will have the biggest impact. Charging often and taking short trips using mostly electric power can significantly increase your overall fuel economy and could exceed the EPA estimates. If you don’t charge regularly and rely on the gasoline engine, you’ll see lower MPG, closer to a conventional hybrid. How you drive, the terrain, and weather will also affect fuel economy.

How it compares

The NX 450h Plus is in a competitive class, and its fuel economy compares well to other SUVs. The Lincoln Corsair Grand Touring, another plug-in hybrid SUV, gets a combined 30 MPG. The BMW X3 xDrive30e gets about 24 MPG combined. Even non-plug-in hybrid competitors like the Acura RDX (23 MPG combined) get worse fuel economy than the NX 450h Plus. This makes the NX 450h Plus a good option for those who want luxury, performance, and good MPG, which can be seen by looking at NX MPG across all years. The NX 450h Plus buyer often compares it to these alternatives, weighing the pros and cons of each powertrain and brand.

Tips to maximize efficiency

Charge the NX 450h Plus regularly to make the most of its plug-in hybrid capabilities. Even partial charges can extend your electric driving range and reduce your gasoline use. Plug in whenever you can, at home, at work, or at public charging stations.

Learn about the different driving modes the NX 450h Plus offers. EV mode uses only electric power, and Auto mode smoothly blends electric and gasoline power for efficiency. Try these modes to find what works best for how you drive and the conditions.

Accelerate gently and brake smoothly for the best fuel economy in any vehicle, but especially in a hybrid. Avoid sudden acceleration and brake gently to let the regenerative braking system recover energy and recharge the battery.

Check your tire pressures often and keep them at the recommended levels. Look for the sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance and reduce fuel economy, which is important for both safety and efficiency.

Remove extra weight from the vehicle. Carrying extra cargo adds weight and reduces fuel efficiency. Remove items you don’t need to lighten the load and improve your MPG. For more details, access all Lexus fuel economy data.