19 MPG combined isn’t going to win any awards, but for the 2018 Ford Mustang GT equipped with the 5.0L V8 and automatic transmission, it’s part of the deal. Buyers aren’t prioritizing Prius-like efficiency when they sign up for a slice of American muscle. They’re after the rumble, the performance, and the unmistakable character of a V8 Mustang. This figure is the price of admission to that exclusive club.

City and highway performance

The EPA’s estimates of 16 MPG in the city and 25 MPG on the highway provide a more granular view of the 2018 Mustang GT’s fuel consumption. The city figure reflects the realities of stop-and-go driving, where the 5.0L engine is constantly working to accelerate the car’s mass. Expect this number to vary significantly depending on traffic congestion and your driving style. The highway figure is more respectable, as the engine settles into a more efficient cruising speed. However, aggressive passing maneuvers or sustained speeds above 75 MPH will quickly erode that 25 MPG rating. The 10-speed automatic transmission (S10) does its best to keep the engine in its optimal range, but ultimately, the driver’s right foot determines the final result. Those who enjoy spirited driving will likely see figures closer to the city rating, regardless of the environment.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Ford Mustang GT at $2,300. This calculation is based on driving 15,000 miles per year and using the national average fuel price for regular gasoline. Remember that this is just an estimate. Drivers who cover more miles annually or live in areas with higher fuel prices will spend considerably more. Conversely, those with shorter commutes and a lighter foot might see lower fuel expenses. It’s still a useful figure for comparison shopping, but consider it a baseline rather than an absolute.

Real-world expectations

While the EPA figures provide a benchmark, real-world fuel economy often deviates. Many drivers average around 17-20 MPG in mixed driving conditions. Frequent short trips or taking advantage of the Mustang’s performance capabilities will push those numbers lower. Conversely, disciplined highway driving with minimal acceleration can yield results closer to the EPA’s 25 MPG estimate. The 2018 Mustang GT’s performance is an asset, with many drivers taking advantage of the car’s power to accelerate quickly, thereby reducing their MPG. See MUSTANG MPG across all years here.

How it compares

Compared to its rivals, the 2018 Mustang GT’s fuel economy sits in a predictable range. The Chevrolet Camaro SS with the 6.2L V8 and automatic transmission achieves around 16 MPG city and 25 MPG highway, mirroring the Mustang’s figures. The Dodge Challenger R/T with the 5.7L V8 lands in a similar ballpark as well. The more powerful Challenger SRT models, with their larger engines, see their numbers declining quickly. Outside the traditional muscle car segment, a luxury coupe like the BMW 440i with its turbocharged inline-six offers better fuel economy, achieving around 25 MPG combined. But this is not why someone buys the Mustang GT.

The comparison matters to prospective Mustang buyers because it reinforces the understanding that performance comes at a price. They are willing to accept the fuel consumption because it aligns with the car’s purpose and character. If fuel economy were the primary concern, they would be shopping for a different vehicle altogether. They want the Mustang’s persona more than they want to save money on gas.

Tips to maximize efficiency

Gentle acceleration makes a noticeable difference when it comes to saving fuel in a car like the Mustang GT. The 5.0L engine can quickly burn through gasoline if you’re constantly flooring it, so smooth and progressive throttle inputs will help keep the MPG higher. Avoid heavy acceleration, in the city or on the highway, and you’ll see a significant improvement.

Maintaining your Mustang is key to optimal fuel economy. Ensure your tires are properly inflated to the recommended pressure, and keep up with scheduled maintenance, such as oil changes and air filter replacements. A well-maintained engine will run more efficiently and deliver better MPG.

Use cruise control on the highway to maintain a steady speed and avoid unnecessary acceleration and deceleration. This can significantly improve your fuel economy during long drives. Set your cruise control and let the transmission and engine work together to keep you up to speed.

Reduce the use of air conditioning when possible. The A/C compressor puts extra strain on the engine, which lowers fuel efficiency. Roll down the windows or use the ventilation system when weather permits to save fuel. The windows are not aerodynamic, so this is not as efficient at high speed: a decision must be made.

Consider using a fuel additive to clean the engine and injectors. Removing carbon buildup and deposits can improve combustion efficiency and restore lost MPG. This is especially useful for Mustangs that see a lot of city driving or infrequent highway use. All all Ford fuel economy data is available online, but the responsibility is still with the driver to achieve the highest possible numbers.