21 MPG combined is not the main reason to buy a 2022 Audi RS 5 Coupe. This isn’t a Prius, nor is it trying to be. The RS 5 coupe is about sharp handling, blistering acceleration, and understated aggression. The fuel economy is simply a price of admission, a factor tolerated rather than celebrated by its clientele. These buyers prioritize performance and exclusivity, finding the RS 5’s blend of luxury and athleticism irresistible, even if it means accepting a less-than-stellar fuel bill.

City and highway performance

The EPA estimates the RS 5 Coupe will achieve 18 MPG in the city and 25 MPG on the highway. That city figure is the one that will sting most owners, as the stop-and-go traffic of urban environments forces its turbocharged 2.9L V6 to work harder, often negating any potential efficiency gains. The highway number is more palatable, reflecting the engine’s ability to cruise comfortably. Intelligent use of the eight-speed automatic transmission, with its taller top gears, helps maintain reasonable efficiency at higher speeds, but aggressive driving will quickly erase any semblance of economy.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2022 Audi RS 5 Coupe is approximately $2,750. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price. Of course, this number can fluctuate significantly based on individual driving habits and prevailing fuel costs. Someone who drives aggressively and primarily in congested city conditions will undoubtedly spend more. It’s a hefty sum, but for the RS 5 owner, it’s often viewed as a necessary expenditure to enjoy the car’s unparalleled performance.

Real-world expectations

Don’t expect to consistently match the EPA’s fuel economy figures in the real world, especially if you’re prone to using the car’s considerable power. Enthusiastic acceleration, frequent gear changes, and extended periods in Sport mode will all take a toll on fuel consumption. More realistic figures for mixed driving are likely to hover around the high teens to low 20s. Some owners have reported achieving the EPA highway figure during long road trips, but this requires a conscious effort to maintain a steady speed and avoid aggressive maneuvers. Check all Audi fuel economy data to get a snapshot of overall efficiency.

How it compares

Compared to its rivals, the RS 5 lands in the middle of the pack when it comes to fuel economy. The BMW M4 Competition Coupe, with its similar turbocharged six-cylinder engine, is rated at 16 MPG city and 23 MPG highway, making it thirstier around town. The Mercedes-AMG C63 Coupe, with its monstrous V8, is even worse, achieving a dismal 17 MPG combined. The less powerful Lexus RC 350 F Sport manages a slightly better 20 MPG city and 28 MPG highway. The truth is any buyer in this segment is aware that fuel economy will be compromised. Checking RS MPG across all years reveals that performance and efficiency have traditionally been at odds.

Tips to maximize efficiency

Resist the urge to constantly exploit the engine’s power. While the RS 5 is undeniably fun to drive aggressively, frequent bursts of acceleration and high-RPM driving will significantly impact fuel consumption. Smooth, deliberate throttle inputs will help maintain better fuel economy without sacrificing too much driving enjoyment.

Use the car’s Drive Select system. Choose the “Efficiency” or “Comfort” mode when you’re not in the mood for spirited driving. These modes optimize the engine and transmission settings for better fuel economy, softening throttle response and shifting to higher gears sooner.

Ensure your tires are properly inflated. Underinflated tires create more rolling resistance, which reduces fuel economy. Check your tire pressures regularly and maintain them at the recommended levels, as indicated on the door jamb.

Minimize idling time. Modern engines consume fuel even when idling, so avoid letting the car idle unnecessarily. If you’re stopped for more than a minute, consider turning off the engine. The start/stop system assists with this task automatically.

Perform regular maintenance. Keeping the engine properly tuned and ensuring that all components are functioning optimally will help maintain fuel economy. Clean air filters, fresh spark plugs, and regular oil changes contribute to efficient engine operation, and will stave off more serious repairs.