2018 Audi S8 MPG
EPA-rated · verified snapshot 2026-08-30 · Midsize Cars
The 2018 Audi S8 gets 18 MPG combined — 14 city and 24 highway — in its most efficient configuration (4.0L · 8-cyl · Automatic (S8) · All-Wheel Drive).
City14 MPG
Highway24 MPG
$4,200Fuel cost / yr (EPA est.)
503 g/miCO₂
PremiumFuel
$-10,0005-yr fuel cost vs. average vehicle
3 / 10EPA Fuel Economy & GHG score
15 ft³Cargo volume
100 ft³Passenger volume
Where it sits among sedans (2018)
FAQ
Where does the 2018 S8 rank among sedans for MPG?
The 2018 S8's 18 MPG combined is below the sedans average of 27.8 MPG for 2018.
How much does it cost to fuel a 2018 S8 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $4,200 for the most efficient trim.
What is the city and highway MPG of the 2018 S8?
The most efficient trim is rated 14 MPG city and 24 MPG highway.