Ford · 2018
Mustang 2.3L 4-cyl
✓ EPA Verified
Regular Gasoline
Subcompact Cars
Rear-Wheel Drive
City
21
MPG
Combined
25
MPG
Highway
32
MPG
Annual Fuel Cost
$1,750
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$400
saved per year
Class Comparison — Subcompact Cars
Top 42%
Better than 58 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 25 MPG
This vehicle
25 MPG
Class average
27 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
5
Energy Score
Out of 10
5
GHG Score
Out of 10
353 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine2.3L 4-cyl
TransmissionAutomatic (S10)
DriveRear-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassSubcompact Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID39648

25 MPG combined in the 2018 Ford Mustang 2.3L EcoBoost isn’t going to win any hypermiling contests, but it’s a perfectly acceptable figure for a car that prioritizes style and a fun driving experience over outright efficiency. This is a vehicle for someone who wants the iconic Mustang silhouette and a sporty feel without the gas-guzzling reputation of the V8. They’re willing to trade a few MPG for the overall package.

City and highway performance

The 2018 Mustang 2.3L EcoBoost earns an EPA-estimated 21 MPG in the city and a respectable 32 MPG on the highway. The highway number is particularly noteworthy. With the 10-speed automatic transmission (designated S10 by the EPA), the engine can cruise at lower RPMs, contributing to improved fuel efficiency on long road trips. The city MPG, while not exceptional, is still manageable for daily commutes and urban driving, considering the car’s performance capabilities. Drivers who spend most of their time on open highways will likely see better than the combined figure.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2018 Ford Mustang 2.3L is $1,750. This calculation is based on driving 15,000 miles per year, using fuel prices that reflect national averages. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and local gas prices. However, $1,750 provides a solid benchmark for budgeting your transportation expenses. You can examine all Ford fuel economy data to see how other models compare.

Real-world expectations

While the EPA provides a consistent standard for comparison, real-world fuel economy often differs. Factors like driving style, traffic conditions, and the use of air conditioning can impact MPG. Owners of the 2018 Mustang 2.3L typically report figures that are reasonably close to the EPA estimates, especially on the highway. Aggressive acceleration and frequent stop-and-go traffic will certainly reduce fuel efficiency. Consistent and moderate driving will yield the best results.

How it compares

Compared to its direct rivals in the sporty coupe segment, the 2018 Mustang 2.3L EcoBoost fares well. The Chevrolet Camaro 2.0T with the automatic transmission, for example, achieves a similar 25 MPG combined, but the Mustang often has a slightly higher highway rating. The Dodge Challenger, which is generally a larger and heavier car, delivers lower fuel economy, particularly with its base V6 engine. Even the Mazda MX-5 Miata, renowned for its sporty handling, only achieves around 30 MPG combined in its automatic transmission version, highlighting that MPG is not the sole focus for sporty vehicles. Comparing MUSTANG MPG across all years gives additional context to this specific model’s efficiency. For buyers considering sport coupes, every MPG counts.

Tips to maximize efficiency

Proper tire inflation makes a difference. Maintaining the correct tire pressure, as indicated on the sticker inside the driver’s side doorjamb, will reduce rolling resistance and improve fuel economy. Under-inflated tires create more friction, forcing the engine to work harder. Check your tire pressure regularly, especially during seasonal temperature changes.

Avoid aggressive driving habits. Rapid acceleration and hard braking significantly decrease fuel efficiency. Smooth and gradual driving allows the engine to operate more efficiently, improving MPG. Anticipate traffic flow and avoid unnecessary acceleration.

Use cruise control on the highway. Cruise control maintains a constant speed, preventing fluctuations in acceleration that can waste fuel. This is particularly effective on long highway drives where traffic is relatively consistent. However, avoid using cruise control in hilly terrain, as the system may downshift frequently, negating some of the fuel-saving benefits.

Minimize idling. Letting the engine idle for extended periods consumes fuel unnecessarily. If you’re stopped for more than a minute, it’s generally more fuel-efficient to turn off the engine and restart it when you’re ready to go. Modern engines are designed to restart quickly and reliably.

Keep up with scheduled maintenance. Regular oil changes, air filter replacements, and spark plug maintenance can all contribute to improved fuel economy. A well-maintained engine operates more efficiently, maximizing MPG and reducing emissions. Consult your owner’s manual for the recommended maintenance schedule.