22 MPG combined isn’t going to win any awards, but for the 2017 Audi RS 3, it’s an acceptable trade-off for the exhilarating performance. This isn’t a car bought by people who want lower fuel costs; it’s a pocket rocket for enthusiasts who want thrills over fuel efficiency. Owners understand that the RS 3’s unique 2.5-liter turbocharged five-cylinder engine, and its associated soundtrack, come at a price.

City and highway performance

The EPA estimates reveal a split personality, as expected. Around town, the RS 3 manages 19 MPG. Stop-and-go traffic, frequent bursts of acceleration, and the natural temptation to exploit the car’s responsiveness take their toll. However, on the open road, the figure climbs to a more respectable 28 MPG. This reflects the engine cruising at lower RPMs and taking advantage of the seven-speed automatic transmission’s higher gears. Long highway stretches can see even better results if you resist the urge to frequently dip into the boost.

Annual fuel cost

The EPA estimates that the average RS 3 owner will spend $2,650 per year on fuel. This figure is based on driving 15,000 miles annually and using the national average fuel price at the time of calculation. Of course, individual spending will vary depending on driving habits, local fuel costs, and the grade of gasoline used. The RS 3’s high-performance engine needs premium fuel, potentially increasing the real-world cost.

Real-world expectations

While the EPA figures provide a guide, expect real-world fuel economy to change based on driving style. Frequent use of launch control, aggressive cornering, and prolonged periods spent in Dynamic mode will reduce MPG. However, a gentler approach and efficiency-focused driving modes can help get closer to, or even slightly exceed, the EPA estimates. Weather conditions and tire pressures also play a role in overall fuel consumption.

How it compares

The RS 3’s fuel economy puts it in a unique position within its competitive set. The BMW M2 (no longer in production for 2017), with its 3.0-liter turbocharged inline-six engine, delivered around 20 MPG combined. The Mercedes-AMG CLA 45, another direct competitor, offered a more fuel-efficient 25 MPG combined from its 2.0-liter turbocharged four-cylinder. The slightly less performance-focused Audi S3 achieves 25 MPG combined, appealing to those who want some of the RS 3’s performance but prioritize efficiency. The comparison matters because it highlights the trade-offs in the RS 3’s unique engine configuration and focus on maximum performance. For buyers considering the RS 3, the added fuel cost is often considered negligible compared to the unique driving experience.

For those interested in seeing all Audi fuel economy data, or perhaps RS MPG across all years, we have listings for your research.

Tips to maximize efficiency

Take advantage of the Audi Drive Select system. In Comfort or Auto mode, the engine and transmission mapping will prioritize fuel efficiency over performance. This softens throttle response and encourages earlier upshifts, saving fuel during regular driving.

Avoid aggressive acceleration. The RS 3’s turbocharger provides a boost of power, but using it frequently will dramatically reduce fuel economy. Smooth, gradual acceleration is key to maximizing efficiency, especially around town.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check tire pressures regularly and inflate them to the manufacturer’s recommended levels, found on the sticker inside the driver’s side doorjamb.

Limit short trips. Cold starts are particularly fuel-intensive, as the engine needs to warm up to its optimal operating temperature. Combining multiple errands into a single trip can reduce the number of cold starts and improve overall fuel economy.

Use cruise control on the highway. Maintaining a consistent speed minimizes unnecessary acceleration and deceleration, optimizing fuel consumption. Cruise control is beneficial on long, flat stretches of highway.