25 MPG combined is a reasonable, if unremarkable, fuel economy figure for the 2023 Lexus NX 350 AWD with its 2.4L turbocharged four-cylinder. This isn’t a hybrid, nor is it a lightweight economy car. It’s a stylish, comfortable, and tech-laden compact luxury SUV, and its buyers prioritize these attributes more than squeezing every last mile from a gallon of gasoline. They want a premium experience with all-weather capability, and the NX 350 delivers that, accepting the fuel consumption penalty that comes with it.

City and highway performance

The EPA estimates the NX 350 AWD will achieve 22 MPG in the city and 29 MPG on the highway. The city figure reflects stop-and-go driving, where the engine is frequently idling or accelerating from a standstill, conditions that generally favor hybrid powertrains. The highway figure is more respectable, showcasing the efficiency of the turbocharged engine at a steady cruise. The eight-speed automatic transmission helps in both scenarios, keeping the engine in its optimal rev range for either acceleration or efficiency. Ultimately, these numbers suggest the NX 350 is adequate for daily urban commutes and longer road trips, but not exceptional in either environment.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2023 Lexus NX 350 AWD at $2,300. This figure is based on driving 15,000 miles per year and using national average fuel prices. Individual expenses will vary depending on driving habits and local fuel costs, but $2,300 provides a useful benchmark for potential owners. If you drive significantly more than 15,000 miles annually, or if fuel prices in your region are substantially higher than the national average, expect your real-world fuel costs to exceed this figure.

Real-world expectations

While the EPA estimates provide a standardized baseline, real-world MPG often deviates. Factors like driving style, ambient temperature, and tire pressure all play a role. Aggressive acceleration and frequent hard braking will reduce fuel economy, as will consistently driving at high speeds. Conversely, smooth acceleration, anticipatory driving, and maintaining proper tire inflation can help you approach or even exceed the EPA figures. Cold weather can also negatively impact fuel economy, as engines take longer to reach their optimal operating temperature.

How it compares

In the competitive landscape of compact luxury SUVs, the NX 350 AWD is in the middle of the pack. The Acura RDX, with its 2.0L turbocharged engine, achieves a similar 23 MPG combined, while the BMW X3 xDrive30i, also equipped with a 2.0L turbo, manages 24 MPG combined. The Audi Q5 45 TFSI comes in at 26 MPG combined. However, the NX 350 has a hybrid counterpart called the NX 350h that reaches 39 MPG combined, showcasing Lexus’s commitment to fuel efficiency. Buyers cross-shopping these vehicles are not strictly prioritizing MPG, but these numbers are important to consider. The NX MPG across all years offers a broader perspective on the model’s fuel consumption, and all Lexus fuel economy data can help place the NX 350 within the brand’s overall lineup. The Volvo XC60 B5 AWD, with its mild-hybrid system, boasts 25 MPG combined, identical to the NX 350 AWD, but with a slightly different driving experience.

Tips to maximize efficiency

Engage the “Eco” drive mode when appropriate. While it may slightly dampen throttle response and acceleration, the powertrain will prioritize fuel efficiency, especially in steady-state cruising. Don’t expect a dramatic improvement, but every little bit helps.

Regularly check and maintain your tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Consult the sticker on the driver’s side doorjamb for the recommended tire pressure, and use a reliable gauge to ensure accuracy.

Avoid unnecessary idling. If you anticipate being stationary for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and reliably, and the fuel saved from avoiding idling can add up over time.

Be mindful of your cargo. Excess weight reduces fuel economy, so remove any items from your NX 350 that you don’t regularly need. This is especially important for those who routinely carry heavy items in the cargo area. Every pound counts toward fuel consumption.

Plan your routes strategically. Avoiding rush hour traffic and congested areas can significantly improve fuel economy. Using navigation apps to identify the most efficient routes can help you minimize stop-and-go driving and maximize your MPG.