The 2015 Infiniti Q60 Convertible with the 3.7L V6 gets an estimated 20 MPG combined. For those attracted to this car’s sleek look and open-air driving experience, that number likely isn’t a deal-breaker. This isn’t a vehicle bought for maximizing fuel efficiency; it’s bought for making a statement, enjoying sunny weekend drives, and relishing the strong engine. The Q60 Convertible buyer values style and performance over absolute frugality at the pump.

City and highway performance

The EPA estimates 18 MPG in the city and 25 MPG on the highway for this specific Q60 configuration. In urban environments, expect to see the fuel gauge move a bit faster. Stop-and-go traffic and the engine’s eagerness to rev will contribute to lower numbers. On the open road, where the engine can settle into a more relaxed state and the automatic transmission can use its higher gears, 25 MPG is an achievable target, especially with a light foot. The Q60’s relatively heavy curb weight impacts fuel consumption in both environments, but the performance-oriented tuning of the 3.7L V6 engine is the primary factor limiting efficiency.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,900 for the 2015 Infiniti Q60 Convertible 3.7L. This figure is based on driving 15,000 miles per year, with a fuel price reflecting national averages. Your actual fuel expenses could be higher or lower depending on your driving habits, the type of driving you do (city vs. highway), and fluctuating fuel prices in your specific area. Aggressive driving will certainly send that annual cost upward.

Real-world expectations

While the EPA provides a standardized test, real-world fuel economy inevitably varies. Many Q60 Convertible owners report numbers close to the official figures, but exceeding them depends on a mindful driving style. Expect lower figures if you frequently engage in spirited acceleration or primarily drive short distances. Consistent highway driving at steady speeds will offer the best chance of meeting or slightly exceeding the 25 MPG highway estimate. Remember that convertible tops often add weight, which can impact fuel efficiency.

How it compares

Compared to other convertibles in its class, the 2015 Infiniti Q60 lands squarely in the middle of the pack regarding fuel efficiency. A 2015 BMW 428i Convertible, for instance, with its turbocharged 2.0L four-cylinder, achieves around 27 MPG combined. However, that vehicle offers a different driving experience, one that some find less engaging than the Q60’s naturally aspirated V6. A 2015 Audi A5 Cabriolet, also with a turbocharged four-cylinder, delivers similar fuel economy to the BMW. These comparisons highlight the trade-off Q60 buyers make: they accept slightly lower MPG for the more muscular performance and distinctive engine note. The Q60 buyer is less concerned with squeezing every last mile from a gallon and more focused on the experience behind the wheel. You can explore Q60 MPG across all years on our site.

Tips to maximize efficiency

Gentle acceleration is key. The Q60’s V6 is responsive, but avoid heavy throttle inputs unless necessary. Ease into acceleration to minimize fuel consumption. With time, this can make a noticeable difference, particularly during your city commute.

Maintain consistent tire pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and ensure it matches the recommended specifications, usually found on a sticker inside the driver’s side doorjamb. An added benefit includes increasing the life of your tire.

Take advantage of cruise control on the highway. Maintaining a steady speed prevents unnecessary acceleration and deceleration, improving fuel efficiency. Use cruise control on long, flat stretches of highway to optimize your MPG.

Reduce unnecessary weight. Carrying extra cargo in the trunk reduces fuel economy. Remove any unnecessary items that add weight to the vehicle, especially if you regularly drive with a full load. This is especially important with your convertible top, which already adds weight compared to other models.

Use the highest gear possible. When driving on the highway, allow the automatic transmission to shift into its highest gear (seventh). This lowers engine RPMs, reducing fuel consumption. Resist the urge to downshift for minor increases to speed, and instead gently accelerate.

Browse all Infiniti fuel economy data to compare across their other vehicles. The tradeoff between style, performance, and cost of ownership are always important.