21 MPG combined is a reality check for anyone considering the 2017 Infiniti Q70 3.7L V6. This isn’t a vehicle purchased for its fuel consumption; it’s for drivers seeking a blend of luxury, performance, and distinctive styling, even if it means frequent trips to the gas station. The type of buyer drawn to the Q70 prioritizes a satisfying driving experience and a well-appointed cabin over maximizing miles per gallon. They accept this tradeoff because the reliable engine and upscale amenities align with their priorities.

City and highway performance

The Q70’s 18 MPG city and 25 MPG highway ratings reflect its powertrain’s characteristics. The V6 engine offers ample power for confident acceleration and effortless cruising, but it needs to work harder in stop-and-go city traffic, leading to poor fuel economy. On the open highway, at a steady speed, the engine operates much more efficiently, yielding a respectable 25 MPG. The seven-speed automatic transmission is smooth in its operation, but it isn’t geared for maximum fuel efficiency like some of its competitors’ offerings.

It’s programmed more for responsiveness and performance, which contributes to the difference between the city and highway MPG figures.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,750 for the 2017 Infiniti Q70 3.7L V6. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is an estimate, and your actual fuel costs will vary depending on your driving habits, the type of fuel you purchase, and regional price fluctuations.

This figure serves as a useful benchmark when comparing the Q70’s operating costs to other vehicles in its class.

Real-world expectations

While the EPA estimates provide a standardized baseline, real-world fuel economy often differs. Drivers who are aggressive, those primarily driving in congested urban areas, or those frequently using the Q70’s powerful acceleration should expect to see numbers closer to the city MPG rating, and possibly even lower.

However, drivers who spend a significant portion of their time on highways, maintain consistent speeds, and practice smooth acceleration could realistically achieve figures closer to, or even slightly above, the EPA’s highway estimate. Driving style directly impacts these numbers, so mindful habits are key.

How it compares

The 2017 Infiniti Q70’s fuel economy places it amongst the lower end of its competitors in the mid-size luxury sedan segment. For example, a comparable BMW 530i (2017) posts ratings around 27 MPG combined, while the Lexus GS 350 (2017) achieves around 23 MPG. The Acura TLX V6 (2017) boasts figures closer to 25 MPG combined. This difference is significant for those who prioritize fuel efficiency.

The Q70 often appeals to buyers who value its distinctive styling and powerful V6 over the fuel-sipping attributes of its competitors. Buyers should compare Q70 MPG across all years before deciding.

Tips to maximize efficiency

Adopting a smoother driving style can significantly impact fuel economy in the Q70. Avoid aggressive acceleration and braking, and maintain a consistent speed on the highway. The V6 responds well to gradual inputs, and excessive throttle use only wastes fuel.

Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, forcing the engine to work harder and reducing fuel economy. Check your tire pressure regularly and inflate them to the manufacturer’s recommended specifications found on the driver’s side door jamb.

Regular maintenance is critical. Keeping your engine properly tuned, ensuring clean air filters, and using the recommended oil type all contribute to optimal engine performance and fuel efficiency. Following the Infiniti’s scheduled maintenance intervals is a worthwhile investment.

Minimize unnecessary weight. Remove any extra cargo from the trunk that isn’t needed. Carrying around excess weight reduces fuel economy, especially during city driving. Every little bit counts.

Consider using the car’s drive mode selector, if equipped, to engage an “Eco” or “Economy” mode. This mode typically adjusts throttle response and transmission shift points to prioritize fuel efficiency over maximum performance. Explore all Infiniti fuel economy data to see other models.