The 2021 Audi Q8 with the 3.0L six-cylinder engine gets an EPA-estimated 20 MPG combined. Buyers are drawn to its sleek design, luxurious interior, and spirited performance, not necessarily its efficiency. For them, that 20 MPG is an acceptable trade-off for the Q8’s many virtues. It’s a price they’re willing to pay for the Audi badge, the comfortable cabin, and the effortless power delivery.

City and highway performance

The Q8’s 3.0L turbocharged V6, coupled with an eight-speed automatic transmission, yields EPA estimates of 18 MPG in the city and 23 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, while the highway number demonstrates the engine’s ability to cruise efficiently at higher speeds. The eight-speed automatic keeps the engine in its sweet spot, balancing responsiveness with fuel conservation. While neither number is great, they are also not dramatically out of line with other vehicles in this class. Remember that the Q8 sends power to all four wheels via Audi’s quattro system, and all-wheel drive always extracts a fuel economy penalty.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Audi Q8 at $2,900. This figure is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, the type of driving you do, and the price of gasoline in your area. Aggressive driving, frequent short trips, and prolonged idling will all negatively impact your fuel economy. If you spend more time on the highway than in the city, you’re likely to see fuel costs lower than the estimate. Premium fuel is recommended for optimal performance, so your fuel costs might be higher than someone driving a vehicle that accepts regular unleaded. You can view all Audi fuel economy data here.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy often varies. Some drivers have reported MPG figures both above and below the EPA’s 20 MPG combined rating. Many owners report averages in the 18-22 MPG range in mixed driving conditions, but these numbers are highly dependent on driving style, traffic, and terrain. Drivers who are heavy-footed or who primarily drive in congested urban environments may see lower numbers. Conversely, drivers who prioritize smooth acceleration and spend more time on open highways may achieve slightly better fuel economy.

How it compares

The 20 MPG combined for the 2021 Audi Q8 positions it in the middle of its competitive set. A comparable BMW X5 xDrive40i also achieves around 21 MPG combined, while a Mercedes-Benz GLE 450 comes in at around 22 MPG. The Range Rover Sport, depending on the engine configuration, can be significantly lower, perhaps around 18 MPG combined, particularly with the supercharged V6. The Acura MDX, a less expensive but still luxurious option, manages around 21 MPG combined, while prioritizing a slightly different mission than the Q8. These fuel economy numbers are relevant to Q8 shoppers, even if fuel efficiency isn’t the top priority. Every MPG matters when you’re paying for premium fuel, and being aware of the competition is part of the luxury SUV purchase process. You can also review Q8 MPG across all years.

Tips to maximize efficiency

The Q8’s turbocharged engine is responsive, but resist the urge to constantly floor the accelerator. Smooth, gradual acceleration will significantly improve your fuel economy, especially in city driving. Treat the gas pedal with respect, and your wallet will thank you.

The Q8 features multiple driving modes, including an “Efficiency” mode. Use this mode when appropriate, especially on long highway drives. It will optimize the engine and transmission settings for maximum fuel economy, sacrificing some responsiveness in the process.

Ensure your tires are properly inflated. Under-inflated tires increase rolling resistance, which negatively impacts fuel economy. Check your tire pressure regularly and inflate them to the recommended level, typically found on a sticker inside the driver’s side door or in the owner’s manual. Even a few PSI makes a difference.

Avoid carrying unnecessary weight in your Q8. Extra cargo adds load to the vehicle, requiring the engine to work harder and consume more fuel. Clean out any unnecessary items from the trunk and rear seats to reduce weight and improve fuel efficiency, especially when the vehicle’s mission is more about luxury cruising than hauling cargo.