Audi S8 MPG by Year

By , Gas Mileage Calculators

Here's the official EPA Audi S8 MPG for every model year from 2001 to 2027.

Best 2026 S8
18 MPG
2026 S8 (AWD)
Most efficient S8 ever
20 MPG
2015 S8

S8 MPG by Year and Version

1 configuration

The EPA has rated 20 configurations of the S8. Pick a year to see each engine and drivetrain.

EPA ratings for the 2026 Audi S8
VersionEngineTransmissionDriveCityHwyCombinedEPA
S8Mild hybridPremium Gasoline4.0L 8-cylAuto (S8)AWD152418View

S8 MPG Over the Years

Each bar shows the range of combined MPG across every S8 configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.

Audi S8 combined MPG range by model year
Gas engines only

How the S8 Compares

The EPA rated 16 large cars for 2026. The best S8 version, at 18 MPG combined, ranks 14th of 16. Combined ratings in the class run from 14 to 51 MPG, with a median of 23. Plug-in hybrids and electric models are ranked separately.

Best combined rating for each large car the EPA rated for 2026, top 5, plus the S8
RankModelCombined
1Hyundai Sonata51 MPG
2Honda Accord48 MPG
2Honda Civic48 MPG
4Acura Integra32 MPG
5Kia K430 MPG
14Audi S818 MPG

What Does a S8 Cost to Fuel?

Pick a S8, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.

Yearly cost
Enter a price
Per month-
Gallons per year-
Cost per mile-
Your blended MPG-
Real-world results vary with driving style, weather, tire condition and maintenance.

S8 MPG Questions

Which S8 year gets the best gas mileage?

The 2015 S8 holds the top EPA rating at 20 MPG combined (16 city, 27 highway). Among 2026 models, the S8 is rated at 18 MPG combined.

Why doesn't my S8 match the EPA numbers?

EPA ratings come from standardized lab tests so every car is measured the same way. Your results depend on speed, climate, idling, cargo, tire pressure and upkeep. The ratings are best for comparing one car against another. To track your own numbers, try the MPG calculator.

Keep Going

Compare two vehiclesSee the yearly fuel cost gap between a S8 and another vehicle. Price a road tripWork out the fuel cost for a trip in your S8 on our sister site, FuelPriceCalculator.com. All Audi modelsRatings for the A4, A6, A8, A5 and every other Audi. Audi A8 MPGAnother Audi, rated 22 MPG combined for 2026. Audi S6 MPGAnother Audi, rated 22 MPG combined for 2025. Dodge Charger MPGA large car from Dodge, rated 19 to 20 MPG combined for 2026. Rolls-Royce Phantom MPGA large car from Rolls-Royce, rated 14 MPG combined for 2026. Maserati Quattroporte MPGA large car from Maserati, rated 16 to 20 MPG combined for 2024. Audi RS 6 MPGAnother Audi, rated 16 MPG combined for 2026.

Where These Numbers Come From

Cedrick Reese built this page from the EPA fuel economy file published on fueleconomy.gov. It has 20 ratings for the S8 from 2001 to 2027, and every one of them is shown in the table. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. Ratings from before 2008 use the EPA's revised estimates, which put older vehicles on the same scale as newer ones. The page is rebuilt whenever the EPA publishes an updated file, which picks up new model years and any rating corrections. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.

Ratings on this page come from the EPA file downloaded on October 1, 2026.

Sources