2021 Audi S8 MPG
EPA-rated · verified snapshot 2026-08-30 · Large Cars
The 2021 Audi S8 gets 16 MPG combined — 13 city and 22 highway — in its most efficient configuration (4.0L · 8-cyl · Automatic (S8) · All-Wheel Drive · Hybrid).
City13 MPG
Highway22 MPG
$4,750Fuel cost / yr (EPA est.)
545 g/miCO₂
PremiumFuel
$-12,7505-yr fuel cost vs. average vehicle
2 / 10EPA Fuel Economy & GHG score
13 ft³Cargo volume
111 ft³Passenger volume
Where it sits among sedans (2021)
FAQ
Where does the 2021 S8 rank among sedans for MPG?
The 2021 S8's 16 MPG combined is below the sedans average of 30.2 MPG for 2021.
How much does it cost to fuel a 2021 S8 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $4,750 for the most efficient trim.
What is the city and highway MPG of the 2021 S8?
The most efficient trim is rated 13 MPG city and 22 MPG highway.