25 MPG combined. That’s the number to remember for the 2021 Ford Mustang with the 2.3L EcoBoost four-cylinder. Before you dismiss it among hybrid and electric vehicle claims, understand what it means: affordable fun anyone can get. This isn’t about hypermiling; it’s about offering the visceral experience of driving a Mustang to more people who value spirited performance more than saving gas. The 2.3L EcoBoost bridges the gap, offering a good blend of efficiency and the iconic Mustang spirit.

City and highway performance

The EPA estimates of 21 MPG in the city and 32 MPG on the highway show a fuel economy profile suited to daily commutes and weekend getaways. The city figure reflects the stop-and-go nature of urban driving, where the EcoBoost engine and its responsive turbocharger need to work a bit harder. The highway MPG highlights the engine’s surprisingly efficient cruising ability. With the ten-speed automatic transmission (S10) specifically calibrated for both performance and economy, the 2.3L Mustang settles into a relaxed state at higher speeds, maximizing its fuel efficiency on longer trips.

Annual Fuel Cost

According to the EPA, the estimated annual fuel cost for the 2021 Ford Mustang 2.3L EcoBoost is $1,750. This figure is based on driving 15,000 miles per year, using a blend of 55% city and 45% highway driving, and assumes the national average fuel price. Actual fuel cost depends on how and where you drive, and fuel prices in your area. More aggressive driving or prolonged idling will hurt your fuel bill, but $1,750 provides a solid benchmark for budgeting.

Real-World Expectations

EPA estimates provide a standardized measure, but real-world MPG often varies. Many Mustang 2.3L owners report achieving the EPA’s 32 MPG highway on long road trips, especially when driving more calmly.

Expect the city MPG to fluctuate based on traffic and your driving habits. Accelerating hard and short trips can easily drop the city MPG to the high teens. Expect an average closer to the combined 25 MPG if you blend city and highway driving, perhaps slightly higher if you drive to save fuel.

How It Compares

The 2021 Mustang 2.3L EcoBoost competes in a segment defined by sporting character, not fuel efficiency. The Chevrolet Camaro with its base 2.0L turbo manages around 25 MPG combined, the same as the Mustang. The Subaru BRZ, known for its lightweight design and nimble handling, achieves around 25 MPG combined with the automatic transmission. The Mustang’s fuel efficiency isn’t out of line with its rivals.

For consumers seeking more fuel efficiency within the sports car realm, a used BMW 228i can achieve slightly higher numbers at around 28 MPG combined, but it offers a different driving experience and potentially higher maintenance costs. For shoppers heavily focused on maximizing MPG, exploring all Ford fuel economy data may reveal other models more aligned with their needs, but within the Mustang lineup, comparing MUSTANG MPG across all years often confirms that the 2.3L EcoBoost offers a balance of performance and fuel efficiency.

Tips to Maximize Efficiency

Gentle acceleration is key. The EcoBoost engine responds well to a light foot. Avoid stomping on the accelerator, especially from a standstill. Smooth, gradual acceleration saves fuel and reduces wear and tear on your tires and drivetrain. Imagine you’re trying not to spill a cup of coffee, that’s the kind of acceleration that saves fuel.

Use the Mustang’s information displays. The onboard computer can provide real-time and average fuel consumption data, letting you monitor patterns over time. Use this information to identify areas where you can improve your driving habits. Paying closer attention to your driving can save fuel over the long term.

Maintain correct tire pressure. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside your driver’s side door. Doing this can improve your MPG and extend the life of your tires.

Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, turn off the engine. Modern engines are designed to be restarted frequently without causing excessive wear. Avoid warming the engine up excessively, too; you only need to drive it gently for the first few minutes.