At 26 MPG combined, the 2024 Audi S3 isn’t going to win any hypermiling contests, nor is it intended to. That figure represents a respectable balance between performance and efficiency in a compact luxury sedan designed for drivers who value spirited acceleration and engaging handling above all else. This isn’t a car bought by those prioritizing outright fuel savings, it’s for enthusiasts who demand a certain level of excitement behind the wheel and are willing to accept mid-pack economy as part of the deal.

City and highway performance

The EPA estimates the 2024 Audi S3 will achieve 23 MPG in the city, while highway driving should yield around 32 MPG. This spread reflects the S3’s turbocharged 2.0-liter four-cylinder engine and its seven-speed automatic transmission. The stop-and-go nature of city driving keeps the turbocharger working harder, impacting fuel consumption. On the open road however, the S3 settles into a more efficient cruise, using its optimized gearing and relatively light weight. Consistent highway speeds allow the engine to operate in a more relaxed state, contributing to the better MPG rating. Drivers who frequently commute in congested urban areas can expect to see fuel economy skewed towards the lower end of the scale, while those with predominantly highway commutes should find themselves closer to the 32 MPG mark.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Audi S3 at $2,250. This figure is based on driving 15,000 miles per year, using a national average fuel price. Fluctuations in gasoline prices will directly affect this number. Drivers who put significantly more miles on their car annually will naturally spend more on fuel. Similarly, those living in regions with higher fuel costs will see a corresponding increase in their annual fuel expenses. The $2,250 estimate provides a reasonable benchmark for budgeting, assuming typical driving habits and average fuel prices. Premium fuel is required for optimum performance, which contributes to the higher running costs.

Real-world expectations

While the EPA ratings provide a standardized comparison point, real-world fuel economy varies based on individual driving habits, road conditions, and even weather. Expect to see numbers fluctuate depending on how aggressively you drive the S3. Repeated hard acceleration and frequent use of the “S” (Sport) mode, which holds gears longer, will certainly decrease fuel efficiency. Keeping tires properly inflated and minimizing excessive idling will help to maintain optimal fuel economy. In real-world use, expect to see figures typically within a few MPG of the EPA estimates under mixed driving conditions. Some drivers report slightly exceeding the highway rating during long trips with conservative driving, showcasing the S3’s potential for efficiency when driven carefully.

How it compares

The S3’s fuel economy places it in a competitive spot within its segment. The BMW M235i xDrive Gran Coupe, a direct competitor, achieves a similar 26 MPG combined. The Mercedes-AMG CLA 35 also returns a combined fuel economy around 25 MPG. Stepping outside the German brands, the Acura Integra Type S, while offering front-wheel drive only, delivers a superior 28 MPG combined. These figures demonstrate that the S3 occupies a middle ground, prioritizing performance over outright fuel efficiency compared to some rivals. For buyers cross-shopping these vehicles, the S3’s blend of power, all-wheel drive, and fuel consumption will be a key factor in their decision. You can browse S3 MPG across all years to see previous generations’ ratings and how they compare.

Tips to maximize efficiency

Adopt a smoother driving style. Avoid aggressive acceleration and hard braking whenever possible. The S3’s turbocharger is eager, but each burst of speed comes at the expense of fuel economy. Anticipate traffic flow and maintain a steady speed to minimize unnecessary throttle input. Using cruise control on the highway can drastically improve your MPG.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressures regularly and inflate them to the manufacturer’s recommended levels, typically found on a sticker inside the driver’s side door or in the owner’s manual. This small task can make a noticeable difference over time.

Reduce unnecessary weight. Carrying extra weight in your vehicle requires more energy to accelerate and maintain speed, negatively impacting fuel economy. Remove any items you don’t need from the trunk and rear seats. This is especially true of heavier items such as tools or sports gear that are not used daily.

Service your S3 according to the manufacturer’s recommendations. Regular maintenance, including oil changes, air filter replacements, and spark plug inspections, ensures that the engine operates at its peak efficiency. Neglecting maintenance can lead to decreased performance and reduced fuel economy. See all Audi fuel economy data for the brand’s full lineup and performance variations.