2015 · Midsize Car · Gas

2015 Audi S8 MPG & fuel economy

The 2015 Audi S8 is a midsize car with one EPA-rated configuration. The most efficient version returns 20 MPG combined (16 city / 27 highway) on premium gasoline. That's up 2 MPG from the 2014 model. Among 69 midsize cars rated for 2015, it ranks 60th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,962 a year to fuel.

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Combined 20 MPG 16 MPG city · 27 MPG hwy

Driving range — not published for this model

Your fuel cost $2,962 15,000 mi/yr · $19.75 per 100 mi

Class rank, 2015 #60 of 69 Midsize Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Premium gas $/gal

Fuel average

The 2015 Audi S8's fuel average is 8.5 km/L (11.8 L/100 km), or 20 MPG combined: 6.8 km/L in the city and 11.5 km/L on the highway.

	MPG	km/L	L/100 km
City	16	6.8	14.7
Highway	27	11.5	8.7
Combined	20	8.5	11.8

How it ranks among 2015 Midsize Cars

Full class ranking →

1Nissan Leaf114 MPGe $799
2Toyota Prius Plug-in Hybrid95 MPGe + 50 MPG $887
3Toyota Prius48 MPG $969
4Honda Accord Hybrid47 MPG $989
5Mercedes-Benz B-Class Electric Drive84 MPGe $1,080
···
60Audi S820 MPG $2,962
···
69Ferrari FF13 MPG $4,558

2015 S8Other midsize carsClass median: $1,850/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

S8 MPG across model years

Full history →

1 EPA-rated configuration

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
AWD · 4.0L 8-cyl turbo · 8-speed automatic S8	Gas	16 MPG	27 MPG	20 MPG	—	$2,962

Specs (most efficient configuration)

Fuel: Premium gasoline
Engine / motor: 4.0L 8-cyl turbo
Transmission: 8-speed automatic
Drivetrain: AWD
Passenger volume: 100 cu ft
Cargo volume: 15 cu ft
Tailpipe CO₂: 452 g/mi
EPA fuel economy score: 5/10
EPA greenhouse gas score: 5/10

2015 Audi S8 vs. rivals

vs Lexus LS Hybrid 20 MPG · $2,962/yr Same fuel cost vs Lexus LS 19 MPG · $3,118/yr S8 saves $156/yr vs Infiniti Q40 22 MPG · $2,693/yr Q40 saves $269/yr vs Infiniti Q70 21 MPG · $2,821/yr Q70 saves $141/yr vs Lexus GS 23 MPG · $2,576/yr GS saves $386/yr vs Acura RLX 23 MPG · $2,576/yr RLX saves $386/yr vs Maserati Ghibli 19 MPG · $3,118/yr S8 saves $156/yr vs Bentley Flying Spur 17 MPG · $3,485/yr S8 saves $523/yr vs Rolls-Royce Wraith 15 MPG · $3,950/yr S8 saves $988/yr vs Bentley Mulsanne 13 MPG · $4,558/yr S8 saves $1,595/yr

Compare the 2015 S8

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Frequently asked questions

What is the gas mileage of the 2015 Audi S8?

Up to 20 MPG combined (16 city / 27 highway).

What fuel does the 2015 Audi S8 use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2015 Audi S8?