
Audi A8 has a total of 5 models on sale. Among them, the 2022 A8L 60 TFSI quattro Premium Collection Edition is equipped with a 460-horsepower engine, with an NEDC fuel consumption of 11.1L per 100km. The 2022 A8L 50 TFSI quattro Comfort Collection Edition and Luxury Collection Edition are equipped with a 286-horsepower engine, with an NEDC fuel consumption of 8.6L per 100km. The 2022 A8L 55 TFSI quattro Premium Collection Edition and Luxury Collection Edition are equipped with a 340-horsepower engine, with an NEDC fuel consumption of 8.6L per 100km. The fuel tank capacity of the Audi A8 is 82L. The distance each model can travel on a full tank of fuel is as follows: For models equipped with a 460-horsepower engine, the distance on a full tank is 82/11.1100=738km. For models equipped with 286 or 340-horsepower engines, the distance on a full tank is 82/8.6100=953km. The fuel consumption of a car is directly related to five major factors: driving habits, the car itself, road conditions, natural wind, and environmental temperature. Specific factors that increase fuel consumption are as follows: Driving habits: Aggressive driving, such as sudden acceleration, frequent overtaking, and not easing off the throttle before a red light, will increase fuel consumption. The car itself: Cars with larger engine displacements generally consume more fuel than those with smaller displacements because larger displacements usually mean higher power, requiring more gasoline to burn and perform work. Heavier cars also consume more fuel because greater weight requires more driving torque. Road conditions: Driving on dirt roads, muddy roads, soft surfaces, or mountainous roads increases resistance and fuel consumption. Natural wind: Driving against the wind or on windy days increases car resistance and fuel consumption. Low environmental temperatures: When the engine block is cold, the injected gasoline does not atomize easily during cold starts, requiring more gasoline to burn, which increases fuel consumption. Additionally, low temperatures prompt the engine computer to control higher RPMs to warm up the car, further increasing fuel consumption.

I've driven the Audi A8 for several years, and the fuel consumption varies significantly between different versions. The 2.0T four-cylinder A8L is the most fuel-efficient, averaging about 8-9 liters in the city and just over 6 liters on the highway. The more common 3.0T V6 version consumes around 10-11 liters during daily commutes, but can rise to 14 liters in heavy traffic. The top-tier 4.0T V8 model consistently consumes over 13 liters, though its power is truly impressive. Fuel efficiency is heavily influenced by driving style—using Comfort mode saves about 2 liters compared to Sport mode, and the start-stop system also helps. A full car or a loaded trunk can increase consumption by half to one liter. Additionally, the quattro system, while stable, does consume more fuel than front-wheel-drive models. I recommend paying attention to the dashboard readings when refueling; after about 5,000 kilometers, you’ll generally understand your car’s fuel consumption patterns.

Last week, I accompanied a friend to test drive the new Audi A8, paying special attention to its fuel consumption. With the air conditioning on in the city, the 3.0T version showed around 11.5 liters per 100 km. On the highway at a steady speed of 110 km/h, the fuel consumption dropped directly to 7.8 liters. This car is quite interesting as the fuel consumption is noticeably linked to the driving mode: in Economy mode, the throttle response is a bit sluggish but it does save fuel, while in Sport mode, the revs are higher and the fuel consumption immediately jumps to 13 liters. Here's a lesser-known fact: using the air conditioning in summer consumes more fuel than using the heater in winter, with a difference of over 1 liter. Tire pressure is also crucial; my friend's car had insufficient tire pressure, which increased fuel consumption by 0.5 liters. The fuel tank holds about 83 liters, allowing for over 900 kilometers on pure highway driving, while for daily commutes, refueling is typically needed every two weeks.

Comparing the fuel consumption between the 2020 and 2024 Audi A8 models, technological advancements have indeed made noticeable improvements in fuel efficiency. The older V6 engine typically started at 10 liters per 100km, while the new model, equipped with a 48V mild hybrid system, not only offers smoother start-stop functionality but also reduces fuel consumption to the range of 8.5-9.5 liters. The body materials have also been upgraded, with components like the hood switched to aluminum alloy, resulting in a weight reduction that saves approximately 0.7 liters per 100km. The new 8-speed transmission is particularly intelligent, with proactive gear shifts that maintain low RPM operation, a feature most evident during highway cruising. However, the larger side mirrors on the new model slightly increase the drag coefficient, causing a minor rise in fuel consumption at speeds above 120 km/h.


