31 MPG combined is a good number for the 2015 Infiniti Q70 Hybrid. Buyers choosing this Q70 aren’t only focused on squeezing every last drop of gasoline; they want luxury, performance, and less gas. The hybrid powertrain allows them to enjoy the Q70’s comfortable ride and elegant styling while using less fuel than a traditional gasoline-powered luxury sedan.

City and highway performance

The EPA estimates for the 2015 Infiniti Q70 Hybrid are 29 MPG in the city and 33 MPG on the highway. This difference shows the strengths of the hybrid system. In stop-and-go city driving, the electric motor helps more, allowing for periods of zero-emission operation and regenerative braking that captures energy. The highway number is still respectable, achieved through the electric motor assisting the 3.5L V6 during acceleration and maintaining a consistent cruising speed.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Infiniti Q70 Hybrid at $1,850. This is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Your actual fuel costs may vary based on your driving habits, road conditions, and local fuel prices. $1,850 provides a way to compare against other vehicles in its class and helps show the potential savings of the hybrid powertrain.

Real-world expectations

The EPA estimates provide a baseline, but real-world fuel economy often differs. Driving style, traffic conditions, and even tire pressure can change the MPG you get. Hard acceleration, frequent hard braking, and prolonged idling will all decrease fuel efficiency. Proper tire inflation and avoiding unnecessary weight in the vehicle can help you get closer to the EPA estimates. Owners report MPG numbers that change a few MPG above or below the official numbers, so consider the 31 MPG combined rating as a realistic target.

How it compares

The 2015 Infiniti Q70 Hybrid competes with other hybrid and conventionally powered luxury sedans. For example, the Lexus ES 300h gets a significantly higher combined MPG of 40. However, the Lexus prioritizes fuel efficiency over performance, which is a key difference for the Infiniti buyer. A comparably equipped BMW 535i, with its inline-6 engine, gets around 24 MPG combined, which shows the Q70 Hybrid’s efficiency over gasoline-only alternatives within the same performance range. Even the base gasoline-powered Q70 3.7L gets only 21 MPG combined, so the hybrid is better within the Q70 lineup. Comparing Q70 MPG across all years shows how Infiniti has approached efficiency. You can explore all Infiniti fuel economy data to see the Q70’s place within the broader Infiniti range.

Tips to maximize efficiency

Use the Q70 Hybrid’s Eco mode whenever possible, especially in city driving. This mode changes throttle response and transmission behavior to use less fuel. It may feel slightly less responsive, but the MPG difference can be noticeable.

Learn regenerative braking. Anticipate stops and gradually ease off the accelerator, allowing the electric motor to capture kinetic energy and recharge the battery. This is better than hard braking at the last moment.

Use accessories like air conditioning and heated seats less, as they take power from the engine and reduce fuel efficiency. Use them carefully to avoid extra energy use. Pre-conditioning the car while it is plugged in can also reduce the load on the engine when you start driving.

Keep your tires properly inflated. Underinflated tires increase rolling resistance and reduce fuel economy. Check your tire pressure regularly and inflate them to the recommended level on the doorjamb sticker.

Plan your routes to avoid heavy traffic and stop-and-go conditions. Maintaining a consistent speed on the highway uses less fuel than constantly accelerating and braking. Use navigation apps to find the most efficient route.