A combined 29 MPG in the 2017 Mazda MX-5 with the 2.0L 4-cylinder and automatic transmission isn’t likely to be a deal-maker or a deal-breaker for anyone seriously considering this car. This isn’t a purchase driven by the necessity for maximum fuel efficiency. This is a purchase driven by a desire for open-top fun, engaging handling, and a connection to the road that’s increasingly rare in modern vehicles. The fuel economy, while respectable, is simply a pleasant side effect of the MX-5’s inherently lightweight design and efficient engine.

City and highway performance

The EPA estimates for city and highway driving are 26 MPG and 35 MPG respectively. The city figure is respectable considering the MX-5’s mission, reflecting its relatively small engine and nimble size. The highway figure is perhaps more impressive. While some smaller, more economy-focused cars might boast similar numbers, the MX-5 achieves it while offering a level of driver engagement and responsiveness that its competitors often lack. That high MPG on the highway is also a clear indicator of how much more efficient these cars become when not being driven enthusiastically, something anyone familiar with the MX-5 knows is a constant temptation.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,000 for the 2017 Mazda MX-5. This figure is calculated based on driving 15,000 miles per year, using the national average fuel price. Remember that this is just an estimate. Your actual fuel costs will vary depending on several factors, including your driving habits, the type of fuel you use, and where you live (fuel prices vary significantly across the country). Nevertheless, the $2,000 figure provides a useful benchmark. For many MX-5 owners, the cost of gas is dwarfed by other expenses such as insurance and maintenance, and let’s be honest, track day fees! A quick visit to all Mazda fuel economy data will show how the MX-5 fits within the wider Mazda range.

Real-world expectations

While the EPA figures provide a useful baseline, real-world fuel economy can vary, and for an MX-5, it often does. Drivers who enjoy exploring the car’s rev range and spirited handling often see figures slightly below the EPA estimates. Those who primarily use the MX-5 for commuting and adopt a more economical driving style might exceed the 29 MPG combined figure. A crucial element influencing real-world numbers lies in understanding that the MX-5 rewards smooth driving. Jerky acceleration and excessive braking are the enemies of fuel efficiency in any car, but they’re particularly noticeable in the MX-5 due to its light weight and responsive engine. Check out MX 5 MPG across all years for a broader perspective.

How it compares

Compared to other sporty roadsters, the 2017 MX-5 holds its own in terms of fuel economy. Consider the Fiat 124 Spider, which shares its platform with the MX-5 but uses a turbocharged engine. The 124 Spider Abarth, focused on performance, achieves around 28 MPG combined. The base model is closer to the MX-5. The Nissan 370Z Roadster, a more powerful but significantly heavier car, manages only around 20 MPG combined. Even some modern hot hatchbacks, like the Volkswagen GTI, can struggle to match the MX-5’s combined MPG, despite having more practical interiors the GTI typically achieves around 28 MPG. The comparison is important because it highlights the MX-5’s efficiency advantage without sacrificing its core mission: providing a thrilling driving experience. The Porsche 718 Boxster, while a step up in performance and price, achieves similar fuel economy, reinforcing the understanding that sporty cars can be fuel efficient through good design.

Tips to maximize efficiency

Take advantage of the MX-5’s lightweight design. Avoid carrying unnecessary weight in the trunk, as every extra pound reduces fuel economy. This is especially important in a small, nimble car like the MX-5, where even a small weight increase can affect performance and efficiency.

Pay attention to tire pressures. Keeping your tires properly inflated reduces rolling resistance and improves fuel economy. Check your tire pressures regularly and inflate them to the recommended levels (found on the driver’s side doorjamb). Too little pressure is far more common than too much, and can destroy fuel efficiency.

Drive smoothly and avoid harsh acceleration and braking. The MX-5 rewards precise inputs. Anticipate traffic flow and maintain a steady speed whenever possible. Aggressive driving not only consumes more fuel but also wears out your brakes and tires faster.

Consider using cruise control on long highway drives. Cruise control helps maintain a consistent speed, which can improve fuel economy. However, be mindful of using cruise control in hilly terrain, as it can sometimes lead to excessive downshifting and increased fuel consumption. A light and sensitive right foot will often be more fuel efficient in rolling terrain.

While it might be tempting to install aftermarket performance parts, be mindful of their impact on fuel efficiency. Some modifications, like a less restrictive air filter or exhaust system, can improve performance without significantly affecting fuel economy. Others, such as aggressive engine tuning, can drastically reduce MPG.