31 MPG combined makes the 2021 Lexus NX 300h AWD appealing to drivers seeking luxury, efficiency, and all-weather capability. This isn’t a high-performance SUV; it’s a meticulously crafted vehicle designed for a specific buyer: someone who prioritizes refinement, reliability, and a reduced carbon footprint over outright speed. These buyers understand that while some competitors might offer slightly better raw MPG numbers in certain conditions, the NX 300h package delivers a uniquely Lexus experience.

City and highway performance

The NX 300h’s strength lies in its city fuel economy of 33 MPG. This is where the hybrid powertrain truly shines, using regenerative braking and electric motor assistance to minimize gasoline consumption in stop-and-go traffic. The 30 MPG highway rating is respectable, though less impressive than the city figure. Long highway stretches will rely more on the gasoline engine, meaning less of a MPG advantage over non-hybrid competitors. Knowing your typical driving environment is key to understanding this Lexus’s fuel economy benefits, a primarily urban commute favors the NX 300h, while frequent long road trips may diminish its advantage.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Lexus NX 300h AWD at $1,400. This figure is based on driving 15,000 miles per year, using a blend of city and highway driving, and factoring in national average fuel prices. If you drive significantly more or less than 15,000 miles annually, or if fuel prices in your area are substantially different from the national average, your actual fuel costs will vary. However, the $1,400 estimate provides a useful benchmark for comparing the NX 300h’s running costs to other vehicles in its class and understanding all Lexus fuel economy data.

Real-world expectations

While EPA estimates offer a standardized baseline, real-world MPG often deviates based on driving habits, terrain, and even weather conditions. Expect to see figures close to the EPA estimates if you drive conservatively and primarily in urban environments. More aggressive driving, frequent hard acceleration, or consistent travel in hilly areas will likely reduce your observed MPG. Regular maintenance, including proper tire inflation and timely filter replacements, also plays an important role in maintaining optimal fuel efficiency. Owners who diligently track their MPG and adapt their driving style accordingly are more likely to realize the full fuel-saving potential of the NX 300h’s hybrid system. Explore NX MPG across all years to compare model years.

How it compares

The Acura RDX, while offering more spirited performance, typically achieves closer to 24 MPG combined. The BMW X3 xDrive30i sits around 25 MPG combined. The Volvo XC60 T5, with its turbocharged engine, falls in a similar range. These differences matter to the Lexus buyer, who is willing to trade a few tenths of a second in 0-60 mph times for several extra miles per gallon. The Lexus UX 250h, the NX’s smaller sibling, offers even better fuel economy, but at the cost of interior space and overall refinement. The Toyota RAV4 Hybrid, sharing a similar powertrain, provides comparable MPG but lacks the luxurious appointments and ride quality of the NX. The true competition, then, isn’t about headline MPG numbers alone, but about the specific blend of attributes that appeal to the Lexus buyer’s priorities.

Tips to maximize efficiency

Gentle acceleration is key to maximizing the NX 300h’s fuel economy. Avoid aggressive starts and hard braking, as these deplete the battery and force the gasoline engine to work harder. Use the Eco drive mode whenever possible, as it optimizes the throttle response and air conditioning system for efficiency.

Anticipate traffic flow and maintain a consistent speed. Constant speed fluctuations consume more fuel than maintaining a steady pace. Letting the car coast to decelerate and taking advantage of regenerative braking opportunities converts the kinetic energy into electricity, therefore recharging the battery and improving mileage.

Minimize the use of accessories like air conditioning, especially at full blast. These systems place a significant load on the engine, diminishing fuel economy. Using the climate control sparingly and opting for recirculated air can reduce this drain.

Ensure proper tire inflation. Underinflated tires increase rolling resistance, reducing fuel efficiency. Check your tire pressure regularly and inflate them to the recommended level (found on the driver’s side doorjamb) to optimize MPG.

Regular maintenance is important for keeping the engine and hybrid system at peak efficiency. Adhere to the manufacturer’s recommended service schedule, including oil changes, filter replacements, and spark plug maintenance. A well-maintained vehicle operates more efficiently and produces fewer emissions.