26 MPG combined from the 2018 Audi A6 quattro 2.0L isn’t an economy car figure, but it’s respectable for a stylish, comfortable, and capable mid-size luxury sedan with all-wheel drive. Buyers considering this A6 aren’t solely focused on minimizing fuel costs. They prioritize a premium driving experience, advanced technology, and the surefootedness offered by Audi’s quattro system. The 2.0-liter turbo engine provides enough power for daily driving, and the fuel economy is a trade-off many are willing to make for the overall package.

City and highway performance

The EPA estimates for the 2018 Audi A6 quattro 2.0L are 22 MPG in the city and 31 MPG on the highway. The city figure reflects the demands of stop-and-go traffic, where frequent acceleration and idling affect fuel efficiency. The 31 MPG highway rating demonstrates the engine’s ability to cruise efficiently at higher speeds. These numbers are a useful benchmark, but they should be viewed as estimates because individual driving habits and conditions can significantly impact real-world fuel consumption.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2018 Audi A6 quattro 2.0L at $2,250. This figure is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. Keep in mind that fluctuations in gas prices will directly affect this annual cost. Drivers who exceed 15,000 miles annually will naturally spend more on fuel, while those who drive less will spend less. The $2,250 figure provides a standardized way to compare fuel costs across different vehicles, assuming consistent driving patterns.

Real-world expectations

EPA estimates are helpful, but real-world fuel economy for the 2018 Audi A6 quattro 2.0L will vary based on several factors. Aggressive acceleration, frequent hard braking, and extended idling will all decrease fuel efficiency. Conversely, smooth, consistent driving at moderate speeds will help you get closer to the EPA estimates. Terrain also plays a role. Driving in hilly areas will generally result in lower MPG than driving on flat roads. Regular maintenance, such as ensuring proper tire inflation and addressing any mechanical issues promptly, is critical for maintaining optimal fuel consumption.

How it compares

The 2018 Audi A6 quattro 2.0L competes with other luxury sedans offering a balance of performance and efficiency. The BMW 530i xDrive, for example, delivers a similar driving experience with an EPA estimated 27 MPG combined. The Mercedes-Benz E300 4MATIC, another competitor, achieves around 25 MPG combined. The Acura TLX SH-AWD, while not quite in the same luxury tier, offers all-wheel drive and typically achieves around 24 MPG combined with its V6 engine. These comparisons are important to the A6 buyer because they’re likely cross-shopping these vehicles, weighing factors like fuel economy, performance, features, and brand prestige to make a final decision. See A6 MPG across all years.

Tips to maximize efficiency

Use the Audi Drive Select system effectively. The A6 offers different driving modes, including an “Efficiency” mode, that optimizes engine and transmission settings for maximum fuel economy. Selecting this mode can improve your MPG, especially during steady-state highway driving where performance demands are lower.

Monitor your tire pressure regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure at least once a month and inflate them to the recommended pressure listed on the driver’s side doorjamb. This simple maintenance task can have a significant impact on your fuel efficiency.

Avoid unnecessary idling. If you anticipate waiting for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, and idling for extended periods wastes fuel. This is especially important in city driving, where you may encounter frequent stops at traffic lights.

Anticipate traffic flow and drive smoothly. Avoid sudden acceleration and hard braking, as these actions consume extra fuel. By looking ahead and anticipating changes in traffic speed, you can maintain a more consistent pace and improve your fuel economy. Leave a safe following distance to give yourself more time to react and avoid abrupt maneuvers.

Keep your vehicle properly maintained. Regular oil changes, air filter replacements, and other scheduled maintenance items are essential for optimal engine performance and fuel efficiency. A well-maintained engine runs more efficiently and consumes less fuel. Neglecting maintenance can lead to decreased fuel economy and potentially more costly repairs down the road. Find all Audi fuel economy data.