The 2021 Ford Mustang High Output Coupe 2.3L EcoBoost gets 23 MPG combined, which is reasonably frugal for a performance machine. It’s not a Prius, nor is it trying to be. The target buyer values style, heritage, and a healthy dose of turbocharged fun more than squeezing every last mile from a gallon of gasoline. They understand that the fuel bill is part of owning a pony car.

City and highway performance

The EPA estimates the 2021 Mustang HO’s fuel economy at 20 MPG in the city and 27 MPG on the highway. The city figure reflects the stop-and-go traffic and frequent acceleration this car is likely to encounter. The highway number shows its ability to cruise efficiently at speed. The 10-speed automatic transmission (S10) is important here, keeping the engine at its best for both performance and economy. Few drivers buy a Mustang for commuting, and that explains the low city MPG. The highway MPG is far more palatable, suggesting that weekend road trips are absolutely possible. The EcoBoost engine isn’t a large displacement V8, but it provides ample power for merging and passing while maintaining decent efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Ford Mustang HO Coupe 2.3L is $1,900. This is based on driving 15,000 miles per year and using current national average fuel prices. This is only an estimate; your actual fuel costs will vary. Your driving habits affect gas mileage as well as the type of fuel purchased and fluctuations in fuel prices. Someone who drives aggressively, or mainly in stop-and-go traffic, will likely exceed this estimate. Someone who drives primarily on the highway and practices efficient driving techniques may be able to improve on it.

Real-world expectations

EPA estimates provide a benchmark, but real-world fuel economy often differs from the official numbers. Factors like driving style, traffic conditions, and tire pressure all play a part. Mustang owners generally know that the 2.3L EcoBoost can deliver better-than-expected MPG on long highway trips if driven conservatively. Owners also know the car is fun, and that a spirited driving style will impact fuel consumption. Drivers report getting close to the EPA highway number on long trips. The city MPG is more challenging to achieve in daily driving.

How it compares

The 2021 Ford Mustang HO is reasonably positioned among other sports coupes. For example, the V6-powered Chevrolet Camaro achieves around 22 MPG combined. The turbocharged four-cylinder version of the same car gets similar numbers to the Mustang HO. The V8 engine Camaro SS gets significantly lower, around 19 mpg combined. The Toyota GR86 boasts a slightly better combined MPG of around 25 MPG. The Kia Stinger GT-Line with its turbocharged 2.5L engine offers similar performance and character, achieving around 25 MPG combined as well. For buyers cross-shopping these models, the Mustang’s blend of performance, style, and heritage outweigh slightly higher fuel costs. All Ford fuel economy data is available to assist shoppers in making informed decisions. You can also check MUSTANG MPG across all years to get some historical context.

Tips to maximize efficiency

The Mustang has selectable drive modes. Use the “Normal” or “Eco” mode because it softens throttle response and optimizes the transmission for fuel efficiency. These modes are acceptable for everyday driving and can make a noticeable difference. Avoid aggressive acceleration and sudden braking. Drive smoothly and consistently for best MPG.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check your tire pressure regularly. Inflate them to the recommended level, which is on the sticker inside the driver’s side door jamb.

Minimize idling. If you’re stopped for more than a minute or two, turn off the engine. Modern engines restart quickly and efficiently, and idling consumes fuel without moving you.

Consider cruise control on the highway. Cruise control helps maintain a constant speed, which can improve fuel economy, especially on long trips. Don’t use cruise control in hilly terrain, where the transmission may downshift frequently, negating any fuel savings.