29 MPG combined makes the 2025 Mazda MX-5 2.0L a small but mighty example of efficiency, a number that speaks directly to the car’s core mission: pure, unfiltered driving enjoyment without excessive penalty at the pump. This isn’t a family hauler or a long-distance cruiser designed primarily for fuel conservation. Rather, it’s a lightweight, rear-wheel-drive roadster, engineered for agility and feedback. The 29 MPG figure is less about raw economy and more about the engineering that allows such a rewarding experience to remain reasonably frugal. Buyers of the MX-5 aren’t typically cross-shopping it against a Prius, but against other vehicles that evoke a similar sense of engagement. The Mazda consistently delivers a superior blend of performance and practical efficiency.

City and highway performance

Looking at the specifics, the 2025 Mazda MX-5’s 2.0L 4-cylinder engine, paired with its smooth S6 automatic transmission, achieves an EPA-rated 26 MPG in city driving and a notable 35 MPG on the highway. These figures are particularly impressive given the car’s sporting intentions. The 26 MPG city rating reflects Mazda’s commitment to lightweight design and an engine that, despite its modest displacement, is tuned for responsiveness at lower RPMs within urban environments. This isn’t a car that feels sluggish or wasteful when navigating stop-and-go traffic, its compact footprint and eager nature make it feel surprisingly adept. On the open road, the 35 MPG highway figure comes from the MX-5’s aerodynamic efficiency and the well-chosen gear ratios of the automatic transmission, which allows for relaxed cruising at highway speeds without excessive engine revolutions. For a car so inherently focused on driving pleasure, achieving mid-30s on the highway makes spontaneous road trips far more appealing and less punishing on the wallet.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,000 for the 2025 Mazda MX-5 2.0L. This figure is based on driving 15,000 miles per year, split between city and highway conditions, and using national average fuel prices. For many MX-5 owners, this $2,000 annual expenditure represents a manageable sum, especially considering the unparalleled driving experience the car delivers. It’s a direct reflection of the 29 MPG combined rating, not an outlier, but a predictable consequence of the car’s balanced efficiency. Buyers of the MX-5 understand that while running costs are a consideration, they are secondary to the sheer joy and connection the vehicle provides. The $2,000 annual fuel cost means that, even for those who use their MX-5 frequently for recreation or even as a daily driver, the financial burden is far from prohibitive, allowing more budget for modifications, track days, or simply more open-road adventures.

Real-world expectations

In the real world, owners of the 2025 Mazda MX-5 2.0L can generally expect to meet or even slightly exceed the EPA’s 29 MPG combined rating, provided their driving style is disciplined. The MX-5’s character, however, actively encourages spirited driving. Pressing the accelerator to hear that eager 2.0L engine sing and feeling the immediate response will naturally consume more fuel. Enthusiasts who frequently engage in twisty backroad blasts or occasional track days will see their MX 5 MPG across all years dip below the official numbers, and they’ll likely do so with a grin. Conversely, those who primarily use their MX-5 for leisurely cruises or highway commuting will find the 35 MPG highway figure readily achievable, often with a little extra to spare. The car’s low curb weight is its greatest ally in real-world efficiency, less mass to move means less energy required, regardless of how vigorously that energy is applied.

How it compares

When evaluating the 2025 Mazda MX-5’s fuel economy, it’s important to compare it to vehicles that share its sporting ethos and not just any car with a similar price tag. For instance, the Subaru BRZ and Toyota GR86 twins, direct competitors in the affordable, rear-wheel-drive sports car segment, offer a combined 25 MPG when equipped with their automatic transmissions, 4 MPG less than the MX-5. Even the larger, more powerful Ford Mustang EcoBoost Fastback with its 10-speed automatic manages 24 MPG combined, while the Chevrolet Camaro 1LT with the 2.0L turbocharged engine and 8-speed automatic also scores 24 MPG combined. The MX-5’s distinct advantage lies in its commitment to lightness and a naturally aspirated engine that doesn’t need to boost its way to power. While bigger sports cars deliver more straight-line speed, they do so at a significant penalty to fuel economy, making the MX-5 stand out. The MX-5 owner isn’t chasing horsepower figures, they are chasing the sensation of driving, and that pursuit comes with a surprisingly modest fuel bill compared to the alternatives.

Tips to maximize efficiency

Maintain consistent throttle input. The MX-5’s engine is eager, and small changes in pedal pressure can significantly impact fuel consumption. Smooth acceleration and deceleration not only save fuel but also enhance the car’s inherent balance and driving fluidity.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder. The MX-5’s lightweight chassis is particularly sensitive to proper tire pressure for both handling and efficiency.

Use the automatic transmission’s manual mode sparingly unless actively seeking performance. While engaging, holding lower gears for extended periods at higher RPMs will naturally consume more fuel than allowing the efficient S6 automatic to shift into its optimal ratios.

Minimize unnecessary weight. Every extra pound the MX-5 carries requires more energy to move. While this is less of a concern than in heavier vehicles, removing items like golf clubs or heavy gear when not needed can contribute incrementally to better all Mazda fuel economy data.

Plan your routes to avoid excessive idling and stop-and-go traffic. The MX-5 feels alive in motion, but like any vehicle, sitting stationary with the engine running wastes fuel. Opting for routes with fewer lights and more consistent speed will always be more efficient.