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Audi S8 fuel consumption

Of all Audi S8 modifications produced from 2006 to 2019 real fuel consumption according to user ratings is approximately 34% higher compared to advertised consumption. Since 2006 the Audi S8 average difference between owner-reported real-world fuel consumption and declared fuel economy has been significantly higher than average.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline cars
All carmakersAudi S8
2006+9%+22%
Show all years
2007+11%+22%
2008+12%+22%
2009+14%+22%
2010+16%+22%
2012+21%+36%
2013+23%+36%
2014+26%+41%
2015+27%+45%
2016+28%+45%
2017+28%+45%
2018+28%+45%
2019+27%+45%

See below for the actual consumption of generations and versions of Audi S8.

2014

Audi S8 2014 fuel economy

Average advertised fuel consumption for petrol engines24.5 MPG
9.6 l/100km
Average real-world fuel consumption for petrol engines16.9 MPG
13.9 l/100km
Average real gasoline consumption difference *+45%
ModificationClaimed consumptionReal consumption
4.0 liter petrol engine
Audi S8 2014 4.0 TFSI quattro 520 HP 4x4 automatic 24.5 MPG
9.6 l/100km
16.9 MPG
13.9 l/100km+45%
2012 - 2014

Audi S8 2012 fuel economy

Average advertised fuel consumption for petrol engines23.3 MPG
10.1 l/100km
Average real-world fuel consumption for petrol engines17.2 MPG
13.7 l/100km
Average real gasoline consumption difference *+36%
ModificationClaimed consumptionReal consumption
4.0 liter petrol engine
Audi S8 2012 4.0 TFSI quattro 520 HP 4x4 automatic 23.3 MPG
10.1 l/100km
17.2 MPG
13.7 l/100km+36%
2006 - 2010

Audi S8 2006 fuel economy

Average advertised fuel consumption for petrol engines18.1 MPG
13.0 l/100km
Average real-world fuel consumption for petrol engines14.9 MPG
15.8 l/100km
Average real gasoline consumption difference *+22%
ModificationClaimed consumptionReal consumption
5.2 liter petrol engine
Audi S8 2006 5.2 FSI quattro 450 HP 4x4 automatic 18.1 MPG
13.0 l/100km
14.9 MPG
15.8 l/100km+22%

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.