The 2016 Audi A8 L 3.0T’s 22 MPG combined isn’t going to win any awards for lower fuel costs, and that’s not its goal. This is a long-wheelbase luxury sedan for buyers who prioritize space, comfort, and understated performance over fuel efficiency. These owners are typically executives, entrepreneurs, or those who appreciate the finer things, and they’re willing to trade some fuel economy for the A8 L’s refined driving experience and prestigious image.

City and highway performance

EPA estimates suggest 19 MPG in the city and 29 MPG on the highway for the 2016 Audi A8 L 3.0T. The city MPG reflects stop-and-go traffic, where the A8 L’s weight and the engine’s inertia matter. However, the highway figure demonstrates the benefits of the smooth-shifting eight-speed automatic transmission and the engine’s ability to cruise efficiently at higher speeds. The A8 L settles into a relaxed pace on the open road, making long journeys a pleasure.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2016 Audi A8 L 3.0T is $2,650. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Individual fuel costs will vary depending on driving habits, location, and local fuel prices, but this provides a benchmark for comparison.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy will always vary. Aggressive driving, frequent short trips, and heavy city traffic will likely result in lower MPG figures. If you use careful driving habits and drive mostly on the highway, you can push the average closer to, or even slightly above, the EPA’s highway estimate. It’s important to monitor your own fuel consumption to get a picture of what your A8 L achieves in your specific driving conditions. For more information, you can view A8 MPG across all years to compare different model years.

How it compares

Compared to its competitors, the 2016 Audi A8 L 3.0T occupies a middle ground in terms of fuel economy. The BMW 740Li, with its 3.0L inline-six, offers similar performance and fuel economy at around 21 MPG combined. The Mercedes-Benz S550, with its more powerful V8, comes in lower at around 20 MPG combined. A Lexus LS 460 might achieve slightly better figures around 23 MPG combined. The A8 L buyer appreciates the Quattro all-wheel-drive system, which most competitors charge extra for, so there is an understanding that this feature comes at a small fuel economy cost, which many buyers are perfectly happy to accept.

Tips to maximize efficiency

Gentle acceleration is key. Avoid hard launches and aggressive overtaking. The A8 L’s 3.0L supercharged engine delivers ample power, but using it carefully will significantly improve fuel economy. Anticipate traffic flow to maintain a steady speed and reduce unnecessary braking.

Proper tire inflation is essential. Check your tire pressure regularly and inflate them to the recommended levels, which can be found on the sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance and reduce fuel efficiency.

Minimize idling. Modern engines are designed to be shut off during brief stops, like traffic lights or while waiting in a parking lot. Excessive idling consumes fuel without covering any distance. Turning off the engine for even short periods can add up to noticeable fuel savings over time.

Reduce weight. Carrying unnecessary cargo in the trunk adds weight to the vehicle and reduces fuel economy. Clear out any items that you don’t need on a regular basis. Every extra pound contributes to increased fuel consumption.

Consider the drive mode selection. The A8’s Drive Select system allows you to choose different driving modes that can influence fuel economy. Selecting the “Efficiency” mode (if available) optimizes the engine and transmission settings for maximum efficiency, at the expense of some performance. You can also see all Audi fuel economy data for more tips.