2015 Audi S8 MPG
EPA-rated · verified snapshot 2026-08-30 · Midsize Cars
The 2015 Audi S8 gets 20 MPG combined — 16 city and 27 highway — in its most efficient configuration (4.0L · 8-cyl · Automatic (S8) · All-Wheel Drive).
City16 MPG
Highway27 MPG
$3,800Fuel cost / yr (EPA est.)
452 g/miCO₂
PremiumFuel
$-8,0005-yr fuel cost vs. average vehicle
5 / 10EPA Fuel Economy & GHG score
15 ft³Cargo volume
100 ft³Passenger volume
Where it sits among sedans (2015)
Compared with the 2014 model, the 2015 S8 is +2 MPG better at its best.
FAQ
Where does the 2015 S8 rank among sedans for MPG?
The 2015 S8's 20 MPG combined is below the sedans average of 25.7 MPG for 2015.
How much does it cost to fuel a 2015 S8 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $3,800 for the most efficient trim.
What is the city and highway MPG of the 2015 S8?
The most efficient trim is rated 16 MPG city and 27 MPG highway.