29 MPG combined. That number is respectable, but for the 2015 Ford Fiesta ST, it’s almost beside the point. This isn’t a car people buy because they want to save fuel. They buy it for the sharp handling, the punchy turbocharged engine, and the sheer fun it delivers on back roads and autocross courses. The MPG is simply the price you pay for that grin-inducing performance.

City and highway performance

The EPA estimates the 2015 Fiesta ST at 26 MPG in the city and 34 MPG on the highway. The city rating reflects the constant stop-and-go driving, which keeps the engine from operating efficiently. The relatively high highway rating benefits from the Fiesta ST’s well-spaced six-speed manual transmission, which allows the engine to cruise comfortably at legal speeds. While automatics often provide better MPG in non-performance applications, the ST only comes with a manual. The engagement the manual offers makes it the right choice for this car.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Ford Fiesta ST at $1,500. This is based on driving 15,000 miles per year and using national average fuel prices. This figure can vary significantly depending on your driving habits and where you live since fuel prices fluctuate across the country. It still provides a reasonable benchmark for budgeting your fuel expenses.

Real-world expectations

You’ll need a disciplined right foot to achieve the EPA’s combined figure of 29 MPG. When driven enthusiastically, as it often is, the Fiesta ST’s fuel economy dips noticeably. Owners often report averages closer to 25 MPG in real-world conditions, especially in urban areas where the turbo is frequently used. However, on long highway trips at a constant speed, exceeding the 34 MPG highway rating is achievable. Ultimately, fuel economy is heavily dependent on driving style, so be ready to use the turbo whenever you can.

How it compares

Compared to its rivals, the 2015 Ford Fiesta ST’s fuel economy is in the middle of the pack. The Mini Cooper S, with its 2.0-liter turbocharged engine, achieves an EPA-estimated 26 MPG combined with the manual transmission. The Volkswagen GTI, a larger hot hatch, manages a respectable 28 MPG combined in manual guise. The Fiat 500 Abarth delivers similar MPG figures for its unique character, even though it’s less practical. The Hyundai Veloster Turbo is rated at 28 MPG combined. You can find all Ford fuel economy data on this site. As with the Fiesta ST, aggressive driving in any of these performance-oriented vehicles will negatively impact fuel consumption. These competitors are cars with similar fun-focused reputations, so tradeoffs with MPG are common. For FIESTA MPG across all years, click here.

Tips to maximize efficiency

The Fiesta ST’s encourages frequent use of the turbocharger, which uses fuel. Try to drive smoothly and anticipate traffic flow to avoid excessive acceleration or deceleration. Resist the urge to constantly downshift for passing, and rely on the engine’s ample mid-range torque when possible. Using cruise control on the highway will help keep the speed steady and improve fuel efficiency.

The Fiesta ST has a short wheelbase and lightweight build, which is great for agility but can make it sensitive to tire pressure. Keep your tires properly inflated to the recommended pressure listed on the doorjamb. Underinflated tires increase rolling resistance, reducing MPG. Properly inflated tires also improve handling and extend tire life.

Avoid carrying unnecessary weight in the car. The less the engine has to work, the better the fuel economy. Remove any items you don’t need, such as extra tools, sports equipment, or luggage. The weight savings add up over time.

Consider investing in a lightweight set of wheels. Reducing unsprung weight can improve both fuel economy and handling. Lighter wheels require less energy to rotate, resulting in improved acceleration and MPG. A small investment in wheel quality can improve the vehicle’s performance.