A 23 MPG combined rating for the 2018 Ford Mustang 2.3L EcoBoost with the Performance Package requires some context. It isn’t just a normal car; it’s a focused performance machine that indicates priorities go beyond maximizing trips between fill-ups. Buyers of this Mustang variant are often enthusiasts who appreciate a balance of sporty handling, aggressive looks, and reasonable affordability, so fuel efficiency, while important, isn’t their main motivation.

City and highway performance

The EPA estimates 20 MPG in the city and 29 MPG on the highway, painting a more complete picture. The 20 MPG city rating reflects stop-and-go traffic and the temptation to dip into the EcoBoost’s readily available torque. The 29 MPG highway number is more attainable on longer cruises, especially if you resist the urge to exploit the Performance Package’s improved handling when encountering long, sweeping onramps. The EPA denotes the 10-speed automatic transmission as “S10,” and it plays a critical role, helping keep the engine in its optimal efficiency range during steady-state highway driving.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2018 Ford Mustang 2.3L EcoBoost with the Performance Package is $1,900. This is based on driving 15,000 miles per year and national average fuel prices at the time of calculation. It’s a useful benchmark, but individual fuel costs will vary depending on your driving habits, local fuel prices, and the specific grade of gasoline you choose. Some owners may exceed this estimate with spirited driving or prolonged idling, while others who prioritize fuel conservation might come in slightly under.

Real-world expectations

EPA numbers provide a standardized comparison, but real-world fuel economy often differs. Driving style, terrain, and even tire pressure can impact the numbers you actually see. Owners who frequently accelerate quickly or live in hilly areas should expect fuel economy closer to the city rating, while those who primarily commute on relatively flat highways may find themselves closer to, or even exceeding, the 29 MPG highway figure. Regular maintenance, including timely oil changes and air filter replacements, will also help maintain optimal fuel efficiency. Keep in mind that the Performance Package, with its stickier tires and aerodynamic enhancements, may slightly reduce fuel economy compared to a standard EcoBoost Mustang.

How it compares

The 2018 Mustang EcoBoost with the Performance Package compares well to its rivals. A similarly equipped Chevrolet Camaro 2.0T manages around 22 MPG combined, putting it in the same ballpark, although the Camaro’s driving experience is considerably different. The V6 Camaro drops the combined MPG to around 20-21. Looking at Japanese alternatives, the Infiniti Q60 2.0t achieves a similar 23-24 MPG combined, but it’s more of a luxurious grand tourer than a raw performance car. The Subaru WRX, another popular choice for performance enthusiasts, averages around 21 MPG combined, highlighting the Mustang’s efficiency in this segment. If buyers prioritize MPG, Ford fuel economy data indicates the Mustang EcoBoost is a reasonable option in the sports car market. See MUSTANG MPG across all years for a complete set of model year comparisons.

Tips to maximize efficiency

Gentle acceleration is helpful. The EcoBoost engine delivers plenty of low-end torque, so there’s no need to floor the accelerator at every stoplight. Gradual acceleration will significantly improve fuel economy, particularly in city driving.

Maintain proper tire inflation. The Performance Package comes with high-performance tires that are more sensitive to pressure changes. Check your tire pressure regularly and inflate them to the recommended specification to reduce rolling resistance and improve fuel efficiency. Consult the sticker on your doorjamb for the correct pressure.

Reduce unnecessary weight. Carrying extra cargo in the trunk adds weight, which reduces fuel economy. Remove any unnecessary items to lighten the load and improve your MPG. Every pound counts, especially in a performance-oriented vehicle like the Mustang.

Anticipate traffic flow. Avoid sudden braking and acceleration by anticipating changes in traffic flow. Maintaining a consistent speed and using engine braking when possible will help you conserve fuel and reduce wear on your brakes.

Consider using cruise control on the highway. Cruise control can help maintain a consistent throttle position and optimize fuel efficiency when driving at a constant speed on the highway. Be sure to remain vigilant and adjust the cruise control as needed based on traffic conditions.