The 2020 Infiniti QX50 AWD gets 25 MPG combined, adequate but not class-leading. Some buyers may accept this in exchange for its distinctive styling and upscale interior. This isn’t a hyper-efficient hybrid pretending to be a luxury SUV; it’s a style-conscious choice for those who prioritize design and comfort over saving money on gas. The QX50 buyer wants a stylish, comfortable vehicle with a premium badge, and while efficiency is a consideration, it’s not the most important factor.

City and highway performance

The QX50’s EPA ratings are 22 MPG in the city and 28 MPG on the highway. The city figure reflects urban driving’s stop-and-go nature, where the engine’s turbocharger and the automatic transmission’s frequent shifting can impact fuel consumption. The highway figure, while respectable, shows that maintaining higher speeds still demands more fuel, especially in an all-wheel-drive vehicle, even with the variable compression technology. Expect a noticeable difference in numbers depending on your driving environment. These numbers are less than the front-wheel-drive QX50, which achieves 26 MPG combined.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Infiniti QX50 AWD at $2,300. This is based on driving 15,000 miles per year and using national average fuel prices. This is an estimate, and your actual fuel costs may vary significantly depending on your driving habits, the type of fuel you use, and local fuel prices. Aggressive driving, frequent short trips, and a heavy foot will all lead to higher fuel bills. Those who primarily drive on the highway and practice fuel-efficient driving techniques may lower their yearly expenses.

Real-world expectations

While the EPA numbers provide a benchmark, real-world fuel economy often differs. The QX50 owners report figures that hover around the combined EPA estimate, but variations are common. Factors like traffic congestion, weather conditions (AWD systems are less efficient), and driving style all play a role. The city MPG can dip below 20 in heavy traffic, and highway MPG could exceed 30 with careful driving. Monitoring your own fuel consumption using the car’s trip computer and a fuel log will provide a more accurate picture of what to expect in your specific driving situation. The variable compression engine, while innovative, can be sensitive to driving style regarding fuel consumption.

How it compares

In the competitive compact luxury SUV segment, the QX50’s fuel economy positions it in the middle of the pack. The Acura RDX achieves 23 MPG combined with its standard turbocharged engine and all-wheel drive. The Lexus NX 300h hybrid significantly outperforms the QX50 with an impressive 31 MPG combined, appealing to buyers who prioritize less gas above all else. Even within the Infiniti family, examining QX50 MPG across all years reveals variations across model years. The BMW X3 sDrive30i (rear-wheel drive) manages 25 MPG combined, illustrating the premium for all-wheel traction in this class. Those considering the Infiniti should weigh these MPG differences against the QX50’s unique selling points: distinctive design, comfortable interior, and the availability of advanced technology features. All all Infiniti fuel economy data is useful when cross-shopping within the brand.

Tips to maximize efficiency

The QX50’s variable compression engine is designed to optimize efficiency, but it relies on smooth, consistent throttle inputs to achieve its best results. Avoid aggressive acceleration and hard braking, as these actions force the engine to switch between compression ratios more frequently, increasing fuel consumption. Gentle acceleration and anticipating traffic flow will allow the engine to operate more consistently in its fuel-efficient mode.

Tire pressure plays an important role in fuel economy. Regularly check and maintain the recommended tire pressure (found on the driver’s side doorjamb). Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Even a few PSI below the recommended pressure can have a noticeable impact on your MPG.

Minimize idling time. Leaving the engine running while stationary consumes fuel without covering any distance. If you anticipate being stopped for more than a minute or two, turn off the engine. The QX50’s engine restarts quickly and smoothly, making it easy to avoid unnecessary idling.

Reduce excess weight. Carrying unnecessary items in the trunk adds weight, which reduces fuel economy. Remove any items that you don’t need on a regular basis, such as golf clubs, sports equipment, or infrequently used tools.