19 MPG combined. Let’s be honest, no one buys a 2023 Ford Mustang GT with the 5.0L Coyote V8 expecting Prius-like fuel efficiency. This is a car purchased for its raw power, its iconic presence, and the visceral thrill it delivers with every push of the accelerator. The gasoline bill is simply the price of admission to that experience. These owners prioritize the rumble of the exhaust and the rush of acceleration over saving a few dollars at the pump.

City and highway performance

Those 19 combined MPG break down into 15 MPG in the city and 24 MPG on the highway, according to the EPA’s official figures. The city number, predictably, suffers due to the engine’s displacement and the need to constantly accelerate from stoplights. The highway figure is more respectable, aided by the 10-speed automatic transmission (S10), which allows the engine to cruise at relatively low RPMs when not under heavy load. Still, aggressive driving on the open road will quickly erode that 24 MPG figure, reminding you of the power beneath the hood.

Annual fuel cost

Based on the EPA’s estimates of 15,000 miles driven per year and national average fuel prices, the annual fuel cost for the 2023 Ford Mustang GT 5.0L is $2,300. This figure underscores the reality of owning a performance car. While not the most exorbitant figure in the world of high-performance vehicles, it is substantially higher than more fuel-conscious options, such as a hybrid sedan or even a smaller turbocharged sports car. Those considering this Mustang should factor this ongoing expense into their budget.

Real-world expectations

While the EPA numbers provide a baseline, real-world fuel economy will vary significantly depending on driving style and conditions. Those who frequently engage in spirited driving, track days, or even just enjoy the occasional burst of acceleration will likely see numbers below the EPA estimates. Conversely, drivers who prioritize fuel efficiency and adopt a more conservative driving style might be able to achieve numbers closer to, or even slightly above, the EPA’s figures. However, it is important to recognize that achieving the advertised MPG requires conscious effort and restraint, something that is not always easy to exercise when behind the wheel of a Mustang GT.

How it compares

Compared to its rivals, the Mustang GT’s fuel economy sits roughly in the middle of the pack. The Chevrolet Camaro with its 6.2L V8 typically achieves around 16 MPG city and 24 MPG highway, putting its combined figure close to the Mustang’s. A Dodge Challenger R/T with the 5.7L Hemi V8 often sees similar numbers as well. The slightly smaller and lighter Nissan Z, with its twin-turbo V6, fares a bit better, often exceeding 20 MPG combined. The EcoBoost Mustang offers drastically better fuel economy, allowing buyers to explore all Ford fuel economy data. The choice often comes down to a trade off, deciding whether fuel consumption or raw performance holds more value.

Tips to maximize efficiency

While the Mustang GT is not inherently designed for fuel efficiency, there are still steps that owners can take to minimize consumption. Avoid aggressive acceleration and hard braking, as these actions put a significant strain on the engine. Smooth, deliberate driving is key to maximizing every gallon of fuel.

Ensure that your Mustang’s tires are properly inflated. Underinflated tires increase rolling resistance, which in turn reduces fuel economy. Check your tire pressure regularly and maintain the recommended pressure as indicated on the door jamb sticker. This simple step can make a noticeable difference over time.

Use the 10-speed automatic transmission’s ability to cruise at low RPMs on the highway. Engaging cruise control can help maintain a consistent speed and minimize unnecessary acceleration and deceleration. Also, consider using the selectable drive modes; the ‘Normal’ mode will prioritize fuel efficiency by adjusting throttle response and shift points.

Regular maintenance is essential for optimal fuel economy. Ensure that your engine is properly tuned, your air filter is clean, and your spark plugs are in good condition. Neglecting maintenance can lead to decreased performance and increased fuel consumption. See MUSTANG MPG across all years to see how well the vehicle has aged.