Audi S8 MPG and Fuel Economy

Audi have been manufacturing models of S8 for 14 years, with the latest vehicle in 2023 having a combined MPG of 18.

The estimated fuel cost for the 2023 Audi S8 is $3,500 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $8,500 more on fuel driving a 2023 Audi S8.

🛢 The Audi S8 will consume roughly 17 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Audi S8 will emit 503 grams of CO2, which is about 7,545,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 360 trees would be needed to offset emissions from the Audi S8.

The table below is a complete list of the 14 Audi S8 fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

VehicleCombined MPGFuel Cost
2023 Audi S818$3,500
2022 Audi S817$4,350
2021 Audi S816$4,600
2020 Audi S816$4,600
2018 Audi S818$4,100
2017 Audi S818$4,100
2016 Audi S818$4,100
2015 Audi S820$3,700
2014 Audi S818$4,100
2013 Audi S818$4,100
2009 Audi S815$4,950
2008 Audi S815$4,950
2007 Audi S815$4,950
2003 Audi S816$4,600

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Audi S8 MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/audi/s8.

  • "Audi S8 MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/audi/s8. Accessed January 3, 2026.

  • Audi S8 MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/audi/s8.