28 MPG combined is a reasonable figure for the 2021 Audi A4 quattro 2.0L. It won’t win any hypermiling contests, but it represents a compromise between performance, all-weather capability, and fuel efficiency. This is a car for the professional who appreciates German engineering and desires a well-appointed interior; they also need all-wheel drive for peace of mind, rather than prioritizing fuel efficiency. The A4 buyer accepts a certain level of operating cost in exchange for the driving experience and prestige the Audi brand provides.

City and highway performance

The EPA estimates of 25 MPG in the city and 34 MPG on the highway showcase the A4’s balanced approach. The city figure, while not exceptional, is respectable for a turbocharged engine powering all four wheels. Stop-and-go traffic impacts fuel consumption, but the A4’s engine stop/start system helps reduce some of that loss. The A4 shines out on the open road. 34 MPG on the highway is genuinely useful for long commutes and road trips. The seven-speed S tronic dual-clutch transmission is expertly tuned to keep the engine in its most efficient range at cruising speeds, contributing to the favorable highway rating. However, drivers frequently engaging in aggressive passing or higher speed driving should expect highway MPG to diminish below that 34 MPG rating.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2021 Audi A4 quattro 2.0L will be $2,050. This figure is based on driving 15,000 miles per year and using national average fuel prices. Individual costs will vary depending on driving habits, local fuel prices, and the type of fuel used. While some drivers might find ways to improve upon this number, it serves as a useful benchmark for budgeting and comparing the A4 to other vehicles in its class.

Real-world expectations

While the EPA estimates provide valuable insights, real-world fuel economy is rarely identical. Expect variations based on driving style, terrain, weather conditions, and even tire pressure. Aggressive acceleration, frequent braking, and consistently high speeds will all reduce fuel efficiency. Mountainous terrain will also place a greater demand on the engine, leading to lower MPG. Cold weather can also negatively impact fuel economy, as the engine requires more fuel to reach optimal operating temperature. Most drivers report numbers close to the official figures. A responsible driver who observes posted speed limits and avoids excessive idling should have no problem getting similar performance as the EPA estimates.

How it compares

The A4’s fuel economy is competitive within the luxury sedan segment, but not class-leading. A comparable BMW 330i xDrive, for example, is rated at 28 MPG combined, matching the A4. The Mercedes-Benz C 300 4MATIC, on the other hand, achieves around 26 MPG combined. These differences can add up over time and influence purchase decisions for those focused on fuel costs. Stepping outside the German brands, the Acura TLX SH-AWD comes in at an EPA-estimated 24 MPG combined. The A4’s combination of fuel efficiency, all-wheel drive, and premium features makes it a strong package. For those considering different model years, explore A4 MPG across all years to see how the fuel economy has evolved.

Tips to maximize efficiency

Monitor your tire pressure regularly. Underinflated tires create more rolling resistance, forcing the engine to work harder and significantly reducing fuel economy. Check the sticker on your driver’s side doorjamb for the recommended tire pressure and maintain that level for efficiency.

Avoid aggressive acceleration and braking. The A4’s turbocharged engine delivers ample power, but excessive use burns more fuel. Smooth, gradual acceleration and anticipation of traffic conditions to minimize braking will create improvements. Also consider putting the car in “efficiency” or “eco” mode, if equipped.

Minimize idling. Letting the engine run when the car is stationary consumes fuel. If you anticipate a wait longer than a minute, turn off the engine. The A4’s engine stop/start system is designed to handle this automatically in many situations, but manual intervention can reduce fuel consumption.

Use cruise control on the highway whenever it is safe. Maintaining a constant speed minimizes fluctuations in engine load, optimizing fuel efficiency. This is especially effective on flat, open stretches of road.

Keep your car well-maintained. Regular oil changes, air filter replacements, and spark plug maintenance all contribute to engine performance and fuel efficiency. Neglecting these tasks can lead to decreased MPG. And check out all Audi fuel economy data to compare different Audi options.