The 2016 Infiniti QX50 3.7L 6-cyl gets 20 MPG combined. That number might seem high compared to some of today’s hybrid SUVs, but it’s important to understand why someone chose this QX50. This purchase wasn’t driven by fuel sipping. It was a conscious decision to prioritize engaging driving dynamics and a strong naturally aspirated engine over ultimate efficiency. Buyers of the 2016 QX50 with the 3.7L V6 value the responsive power and character that this engine delivers more than saving a few dollars on their monthly gas bill. They wanted a sporty crossover with a touch of luxury, and they were willing to accept the fuel economy penalty that came with it.

City and highway performance

The EPA estimates rate the 2016 Infiniti QX50 at 17 MPG in the city and 24 MPG on the highway. The city figure reflects stop-and-go traffic, where the QX50’s 3.7L V6 works harder and its fuel consumption increases. While the highway number is better, it’s still not impressive. It represents consistent cruising speeds, however, even slight inclines or aggressive passing maneuvers will quickly drop that figure. The seven-speed automatic transmission is geared to provide strong acceleration, which also impacts fuel economy. These are the typical numbers for a fairly simple vehicle in a time of increasingly complex solutions designed to save fuel.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2016 Infiniti QX50 3.7L 6-cyl is $2,900. This figure is based on driving 15,000 miles per year and using current national average fuel prices. Your actual fuel costs may vary significantly depending on your driving habits, the type of driving you do (more city or highway), and the price of gasoline in your area. The $2,900 estimate provides a standardized benchmark for comparing the QX50’s fuel costs to other vehicles, but individual experiences can certainly be higher or lower. This vehicle requires premium fuel, which factors directly into this total.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy often deviates. QX50 drivers who frequently find themselves in heavy city traffic or enjoy using the engine’s power can expect to see numbers closer to or even below the 17 MPG city rating. On the other hand, those who primarily drive on the highway and adopt a more conservative driving style might achieve closer to the 24 MPG highway figure. Overall, expecting to consistently achieve the combined 20 MPG is realistic for drivers with a mix of driving conditions. If fuel efficiency is a primary concern, drivers should monitor their driving habits and adjust accordingly. Some buyers of this vehicle never even look at the MPG, while others seek to beat the EPA estimates by simply being mindful.

How it compares

The 2016 Infiniti QX50’s fuel economy lags behind some of its competitors. The Acura RDX, for example, with its 3.5L V6, achieves a combined fuel economy of 22 MPG. The Lexus NX 200t, with its turbocharged 2.0L four-cylinder, boasts a combined 25 MPG, significantly better. Even within the Infiniti lineup, newer models of the QX50 demonstrate improvements using smaller displacement 4-cylinder engines, as you can see in QX50 MPG across all years. The buyer who is only considering the 2016 QX50 3.7L is making a tradeoff, foregoing some potential fuel efficiency for the specific driving experience this model offers. Other competitors, like the BMW X3 (depending on engine choice) offer similar levels of driving enjoyment but can come with a higher price tag. You can also view all Infiniti fuel economy data on our site to compare across the brand.

Tips to maximize efficiency

Avoid aggressive acceleration. The QX50’s 3.7L V6 is responsive, but stomping on the gas pedal will quickly reduce fuel economy. Gentle acceleration and anticipating traffic conditions allow the engine to operate more efficiently. Imagine there’s an egg between your foot and the accelerator; smooth and steady wins the fuel-saving race.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside the driver’s side door jamb.

Reduce unnecessary weight. Carrying extra cargo in the QX50 adds weight, which negatively impacts fuel economy. Remove any unnecessary items from the vehicle to lighten the load and improve efficiency.

Use cruise control on the highway. Maintaining a consistent speed on the highway can help optimize fuel economy. Engaging cruise control allows the vehicle to maintain a set speed without fluctuations, reducing unnecessary acceleration and braking. You’ll get the best MPG on flat terrain at a steady pace.

Keep up with scheduled maintenance. Regular maintenance, such as oil changes and air filter replacements, ensures that the engine is running optimally. A well-maintained engine is a more efficient engine.