36 MPG combined is a strong figure for the 2022 Lexus NX 450h Plus AWD. It’s a plug-in hybrid compact SUV offering all-wheel drive and a badge known for reliability and luxury. The NX 450h Plus aims to attract buyers who prioritize efficiency without sacrificing premium features, strong performance, and the peace of mind that comes with the Lexus reputation. These buyers also understand that the electric assist smooths out the inherent drawbacks of smaller four-cylinder engines, resulting in better fuel economy and a more refined driving experience.

City and highway performance

The EPA estimates suggest the NX 450h Plus performs best in urban environments, achieving 38 MPG in city driving. This is due to the regenerative braking system and the ability to operate on electric power alone for long stretches, especially at lower speeds. On the highway, the figure drops slightly to 33 MPG. While still respectable, this demonstrates that the higher speeds and constant throttle inputs of highway driving rely more on the gasoline engine, which impacts overall efficiency. Even on the open road, the electric motor provides supplemental power, contributing to a more efficient and responsive driving experience than a purely gasoline-powered counterpart.

Annual fuel cost

According to EPA estimates, the annual fuel cost for the 2022 Lexus NX 450h Plus AWD is $1,600. This figure is calculated based on driving 15,000 miles per year, using the national average fuel prices. Your personal fuel costs may vary depending on your driving habits, the price of gasoline in your area, and how often you use the vehicle’s plug-in capability. Charging the battery regularly will significantly decrease the fuel cost. The $1,600 estimate provides a useful benchmark for comparing it against other vehicles in its class.

Real-world expectations

The real-world fuel economy of the NX 450h Plus will vary, but you can generally expect to achieve figures reasonably close to the EPA estimates if you drive conscientiously. Shorter trips where the electric motor does most of the work will yield significantly higher MPGs. Longer highway journeys will be closer to the 33 MPG rating. Aggressive driving, frequent hard acceleration, and consistently high speeds will decrease fuel economy. Weather conditions and terrain can also play a role, with colder temperatures typically reducing battery performance and fuel efficiency. The advantage of a plug-in hybrid is the degree of control owners have over their fuel consumption based on charging habits.

How it compares

The NX 450h Plus competes against other plug-in hybrid SUVs. The Volvo XC60 Recharge offers an impressive combined MPG and electric range but often at a higher price point. The Mitsubishi Outlander PHEV provides similar all-wheel drive capability and electric range. Comparing the NX 450h Plus to its gasoline-only sibling, the NX 350 AWD, the plug-in hybrid demonstrates a noticeable advantage in fuel economy, the NX350 averages around 25 MPG combined. This comparison is critical for Lexus shoppers deciding if the plug-in version justifies its higher initial cost. You can find NX MPG across all years on our site. For shoppers considering other Lexus models, view all Lexus fuel economy data.

Tips to maximize efficiency

Take full advantage of the NX 450h Plus’ plug-in capability. Regularly charging the battery, even for short periods, can significantly reduce your reliance on gasoline and increase your overall fuel economy. Prioritize charging during off-peak hours if your electricity provider offers time-of-use rates.

Familiarize yourself with the various drive modes offered by the NX 450h Plus. The “EV” mode forces the vehicle to operate on electric power alone as long as there is sufficient charge, while “Auto” mode intelligently balances the use of gasoline and electric power. Choosing the appropriate mode for your driving conditions can optimize efficiency.

Practice smooth and gradual acceleration and braking. Avoid sudden bursts of speed or hard stops. The NX 450h Plus features regenerative braking, which captures energy during deceleration and uses it to recharge the battery. Gentle braking allows the system to recover more energy, improving overall efficiency.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Check your tire pressure regularly and inflate your tires to the recommended pressure level, typically found on a sticker on the driver’s side doorjamb.

Reduce unnecessary weight. Carrying heavy items in your vehicle increases fuel consumption. Remove any unnecessary cargo to minimize the load on the engine and electric motor.