← all 2014 Audi A6 quattro trims
2014 Audi A6 quattro — 3.0L 6-cyl, S8 automatic, AWD
This 2014 Audi A6 quattro (3.0L 6-cyl, S8 automatic, AWD) runs on diesel. DIESEL
29
MPG combined (24 city / 38 hwy)
$2,472
est. fuel cost / year (today’s prices, 15k mi)
349 g/mi
tailpipe CO₂
At today's AAA national average price ($4.78/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.
EPA updated its fuel-economy equations again for model year 2017 — mostly affecting hybrids and turbocharged engines — and recalculated 2011-2016 ratings to match, in some cases 1-2 MPG lower. The number above already reflects that update.
Other 2014 Audi A6 quattro trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.0L 4-cyl, S8 automatic, AWD | PREMIUM | 23 | $3,052 |
| 3.0L 6-cyl, S8 automatic, AWD | PREMIUM | 21 | $3,343 |
EPA fuel type: Diesel · class: Midsize Cars · engine: 3.0L 6-cyl turbo · transmission: S8 automatic · drive: AWD · MPG retrieved 2026-07-24.