The 2020 Lexus NX 300h AWD 2.5L 4-cyl gets 31 MPG combined, a fuel-sipping choice that’s still not groundbreaking. It’s a respectable figure for a compact luxury crossover with all-wheel drive, since buyers in this segment often prioritize style, comfort, and technology over outright efficiency. This number highlights the NX 300h’s appeal to those seeking a taste of luxury and lower fuel costs, without sacrificing the confidence of all-weather capability.

City and highway performance

The EPA estimates the NX 300h at 33 MPG in the city and 30 MPG on the highway. These figures show that the NX 300h’s hybrid powertrain excels in urban environments, where regenerative braking and electric motor assistance can contribute significantly to fuel savings during stop-and-go driving. The slight dip in highway MPG suggests that at higher speeds, the gasoline engine plays a more prominent role.

However, the difference isn’t drastic, so you’ll get consistent fuel economy regardless of your typical driving landscape.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2020 Lexus NX 300h AWD is $1,400. This calculation is based on driving 15,000 miles per year and using national average fuel prices. This number reflects the potential savings of choosing a hybrid model in a segment often characterized by thirstier gasoline-only powertrains.

Real-world expectations

While the EPA’s figures offer a solid benchmark, real-world fuel economy can vary based on driving habits, traffic conditions, and environmental factors. Aggressive acceleration, frequent hard braking, and prolonged idling can all negatively impact fuel consumption. On the other hand, smooth, consistent driving and maximizing the use of regenerative braking can help drivers achieve or even exceed the EPA’s estimates. Remember that external temperature, tire pressure, and even the weight of cargo can influence efficiency.

How it compares

In the competitive arena of compact luxury crossovers, the NX 300h stands out for its hybrid powertrain. The non-hybrid NX 300 AWD, for example, achieves only 24 MPG combined. Competitors like the Acura RDX (23 MPG combined) and BMW X3 xDrive30i (24 MPG combined) offer more traditional gasoline engines and subsequently lower fuel economy. Even other hybrid offerings, such as the Volvo XC60 Recharge, while offering more power, can’t beat the NX 300h’s fuel efficiency, delivering around 28 MPG combined in real-world testing. These comparisons are critical for buyers who want luxury but also see fuel efficiency as important to some degree. For those hyper-focused on MPG above all, the Lexus UX 250h achieves 41 MPG combined, and may be a suitable alternative if space isn’t a top priority.

Tips to maximize efficiency

Take advantage of the NX 300h’s regenerative braking system. Anticipate stops and decelerate gradually to maximize the energy captured and stored in the battery. Avoid abrupt braking, which wastes energy and reduces the effectiveness of the regenerative system.

Use the NX 300h’s drive mode selector wisely. The “Eco” mode optimizes the powertrain for maximum fuel efficiency by adjusting throttle response and climate control settings. Use “Normal” for a balance of performance and efficiency, and “Sport” for a more responsive driving experience, but keep in mind that using “Sport” mode will negatively impact fuel economy.

Pay attention to tire pressure. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tires regularly and maintain the recommended pressure, which can be found on a sticker inside the driver’s side door jamb.

Minimize the use of accessories that draw power from the engine, such as air conditioning and heated seats. While these features enhance comfort, they can significantly impact fuel consumption. Use them sparingly, especially during short trips where the engine hasn’t had time to reach optimal operating temperature.

Routine maintenance is key. Be sure to follow the manufacturer’s recommended maintenance schedule, including tasks like oil changes, air filter replacements, and spark plug inspections. A well-maintained engine operates more efficiently, which translates to better fuel economy. You can explore all Lexus fuel economy data to see how even slight differences in model years can affect efficiency. Be sure to check the NX MPG across all years to see how your specific year compares.