The 2018 Infiniti Q50 Hybrid 3.5L V6 gets 29 MPG combined, which isn’t going to win any efficiency contests, but it’s a respectable figure considering this sedan’s purpose. It’s designed to deliver brisk performance and a luxurious driving experience, and the hybrid powertrain offers a noteworthy fuel economy improvement over the standard gasoline-only Q50 offerings. This blend of efficiency and athleticism appeals to buyers who want some guilt-free fun behind the wheel.

City and highway performance

The EPA estimates for the 2018 Infiniti Q50 Hybrid break down to 27 MPG in the city and 32 MPG on the highway. The city figure is particularly strong for a V6-powered sedan, highlighting the benefits of the electric motor during stop-and-go driving. The highway number is less impressive, but still solid. The electric motor assists during acceleration and cruising, reducing the reliance on the gasoline engine and boosting efficiency on longer trips.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2018 Infiniti Q50 Hybrid 3.5L V6 is $2,000. This figure is based on driving 15,000 miles per year and reflects national average fuel prices. Your actual expenses may vary depending on local fuel costs, driving habits, and the specific routes you take. If you primarily drive in the city, you may see costs that are lower than the EPA’s estimate. If you have a heavy foot or live in an area with very high gas prices, you could easily exceed that $2,000 mark.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy often differs. Many factors can influence the MPG you experience in the 2018 Infiniti Q50 Hybrid. Aggressive driving, frequent hard acceleration, and hilly terrain can all reduce fuel efficiency. Consistent highway driving at steady speeds will likely yield results closer to (or potentially even exceeding) the EPA’s 32 MPG estimate. Owners who prioritize fuel efficiency and practice smooth driving techniques generally report results close to the EPA’s combined figure.

How it compares

The 2018 Infiniti Q50 Hybrid’s fuel economy holds its own in the competitive luxury sedan segment, but its rivals each have different focuses. The Lexus ES 300h, for example, prioritizes efficiency above all else, achieving an EPA-estimated 44 MPG combined, but its driving experience is considerably less sporty than the Q50. A non-hybrid competitor like the BMW 330i achieves around 28 MPG combined, sacrificing a bit of efficiency for a more engaging driving experience. The Acura TLX 2.4L earned 27 MPG combined. For shoppers seeking a balance of performance and efficiency, the Q50 Hybrid strikes a satisfying middle ground. It handily beats the non-hybrid Q50 models, all the all Infiniti fuel economy data makes that clear, and is a particularly noticeable improvement over the non-hybrid V6 version. Buyers should also consider the Q50 MPG across all years, because efficiency varies somewhat.

Tips to maximize efficiency

Use the Q50 Hybrid’s Eco mode. This setting adjusts the throttle response and transmission mapping to prioritize fuel efficiency. While it might slightly reduce acceleration, it can make a meaningful difference in MPG, especially during city driving. Avoid prolonged periods of hard acceleration, and use cruise control on the highway whenever possible to conserve fuel.

Regular maintenance is important for optimal fuel economy. Ensure that your tires are properly inflated; check your tire pressure at least once a month, as underinflated tires create more rolling resistance and reduce MPG.

If you have access to regular charging, consider pre-conditioning the cabin while the car is plugged in. This can reduce the energy demand on the hybrid system during your initial drive, preventing the use of the gasoline engine. The less the gasoline engine runs, the more you save.

Minimize your use of accessories like air conditioning and heated seats when they are not absolutely needed. These features draw power from the engine, reducing fuel efficiency, albeit slightly. Open the windows when possible.