The 2015 Nissan 370Z Roadster, equipped with a 3.7L V6 engine and automatic transmission, gets an estimated 21 MPG combined. This isn’t winning any efficiency awards, but fuel economy isn’t the main concern for drivers seeking the open-air thrills and visceral experience this Z offers. The typical 370Z Roadster buyer values sharp handling, strong power, and iconic styling over maximizing fuel efficiency. They likely know that a naturally aspirated V6 paired with a somewhat dated automatic transmission consumes more fuel, and they accept that as part of owning this car.

City and highway performance

The EPA estimates 18 MPG in the city and 25 MPG on the highway for this 370Z Roadster configuration. The city figure reflects stop-and-go driving, where the car’s weight and the engine’s eagerness to rev work against fuel efficiency. The highway number is more respectable and reachable for drivers who avoid constantly tapping into the engine’s power on the open road.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2015 Nissan 370Z Roadster 3.7L 6-cyl (automatic) at $2,750. This is based on driving 15,000 miles per year and using the national average premium unleaded gasoline price. This underscores that enjoying the 370Z Roadster’s performance means a financial commitment beyond the initial cost. If budget is a primary concern while shopping for a sporty convertible, consider this cost.

Real-world expectations

While the EPA estimates provide a benchmark, real-world fuel economy varies based on driving style, traffic, and even tire pressure. Expect slightly lower numbers than the EPA estimates if you often drive aggressively or in heavy traffic. However, owners who primarily use their 370Z Roadster for leisurely weekend drives and drive conservatively potentially will see numbers closer to or even above the EPA’s highway estimate. Review 370Z MPG across all years to understand typical owner experiences.

How it compares

The 2015 370Z Roadster’s fuel economy is average compared to other sporty convertibles of its time. A 2015 Mazda MX-5 Miata, for example, achieved around 29 MPG combined, which is significantly better. But the Miata’s driving experience is different, prioritizing lightweight agility over power. A contemporary Chevrolet Camaro Convertible with the V6 came reasonably close at around 22 MPG combined but sacrificed some of the Z’s sharp handling. The BMW Z4 sDrive28i, while more luxurious, achieved about 26 MPG combined, demonstrating the efficiency of its turbocharged four-cylinder engine. Buyers should understand these tradeoffs when deciding among sporty roadsters.

Tips to maximize efficiency

Though the 370Z Roadster isn’t known for fuel efficiency, minimizing trips to the gas station is possible. Avoid aggressive acceleration and hard braking. The 3.7L V6 responds quickly and loves to rev, but using its power constantly will lower fuel economy.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, making the engine work harder and consume more fuel. Check your tire pressure regularly and maintain the levels specified in the owner’s manual.

Use cruise control on long highway drives. Maintaining a constant speed improves fuel economy by minimizing unnecessary acceleration and deceleration. This also reduces driver fatigue on longer trips when covering distance.

Keep up with routine maintenance. Regular oil changes, air filter replacements, and spark plug inspections ensure the engine runs at peak efficiency. A well-maintained engine performs better and wastes less fuel.

Consider using a more fuel-efficient vehicle for shorter trips. Using another car for quick errands instead of the 370Z Roadster can significantly reduce overall fuel consumption. The 370Z is for enjoyment, but every mile doesn’t have to be driven in it.

The 2015 370Z Roadster offers an engaging driving experience relevant to enthusiasts who love the brand. See all Nissan fuel economy data for more context. The car has character, and its fuel consumption is part of its story.