| Engine | 2.0L 4-cyl |
| Transmission | Automatic (S7) |
| Drive | Rear-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Midsize Cars |
| Engine Desc | SIDI |
| Start-Stop | Yes |
| EPA Vehicle ID | 38106 |
26 MPG combined won’t top any charts, but it’s a perfectly acceptable figure for the 2017 Infiniti Q50 2.0L 4-cyl. This isn’t a hybrid or an eco-focused compact; it’s a rear-wheel-drive (or optional all-wheel-drive) luxury sedan designed for drivers who prioritize style, comfort, and a touch of sportiness over outright fuel efficiency. The Q50 buyer appreciates a well-appointed interior and a responsive driving experience, and they’re willing to live with decent fuel economy to get it.
City and highway performance
The EPA estimates for the 2017 Q50 2.0L are 23 MPG in the city and 31 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the 2.0L engine works harder to move the Q50’s weight. The highway number is more respectable, showcasing the engine’s ability to cruise efficiently at steady speeds, helped by the smooth seven-speed automatic transmission. Intelligent cruise control, standard on some trims, can further optimize fuel consumption on long journeys by maintaining a consistent speed and following distance.
Annual fuel cost
The EPA estimates an annual fuel cost of $2,250 for the 2017 Infiniti Q50 2.0L. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Remember that this is just an estimate; your actual fuel costs will vary depending on your driving habits, the type of fuel you use (premium is recommended for optimal performance), and local fuel prices.
Real-world expectations
While the EPA estimates provide a useful baseline, real-world fuel economy can vary. Aggressive driving, frequent short trips, and cold weather can all negatively impact fuel consumption. Owners who prioritize smooth acceleration, anticipate traffic flow, and keep their tires properly inflated are more likely to achieve figures closer to the EPA estimates. Checking Q50 MPG across all years forums and owner reviews can provide further insight into real-world fuel economy experiences.
How it compares
The 2017 Infiniti Q50 2.0L competes in a crowded segment of luxury sedans. The BMW 320i, for example, offers similar performance and fuel economy, with an EPA-estimated 24 MPG combined. The Lexus IS 200t, with its turbocharged engine, achieves around 25 MPG combined. The Acura TLX, with its base 2.4L 4-cylinder engine, offers slightly better fuel economy, landing around 28 MPG highway. The Q50’s direct competitors offer near-identical combined fuel economies, but the differences become more meaningful at specific trims and option packages. Drivers who want lower fuel costs may opt for the TLX or consider hybrid alternatives, but Q50 buyers often prioritize styling and features over a few extra miles per gallon.
Tips to maximize efficiency
The Q50 2.0L responds well to a light foot on the accelerator. Avoid sudden bursts of speed and try to maintain a consistent pace, especially during city driving. Letting the car gradually build speed will reduce the amount of fuel injected into the engine.
Regular maintenance is important for optimal fuel efficiency. Ensure your tires are properly inflated, as underinflated tires create more rolling resistance. Schedule oil changes and other routine services according to the manufacturer’s recommendations to keep your engine running smoothly.
Use the Q50’s driving modes to your advantage. The “Eco” mode adjusts the throttle response and transmission mapping to prioritize fuel economy. It might make the car feel slightly less responsive, but it is a suitable option for long highway drives.
Minimize the use of accessories like air conditioning, especially during short drives. These systems draw power from the engine, reducing fuel efficiency. When possible, use the ventilation system or open windows to cool the cabin.
Consider the weight you’re carrying in the car. Remove any unnecessary items from the trunk or backseat, as extra weight increases fuel consumption. This is a good rule of thumb for any vehicle, but can add up measurably over time.
For all Infiniti fuel economy data, visit FuelEconomyHub.com.