Audi A8 2002 fuel consumption
Audi A8 from 2002 to 2007 real fuel consumption according to user reports is approximately 13% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 12% higher, but for diesel engines is approximately 15% higher. Starting from 2002 Audi A8 average difference between actual owner-reported fuel consumption and stated consumption was significantly higher than average, at 2007 difference between owner-reported and advertised fuel economy became less than industry average. For more details, see the table below.
Year-to-year deviations of actual owner-reported average fuel consumption from advertised values
| Year | Gasoline cars | Diesel cars | ||
|---|---|---|---|---|
| All carmakers | Audi A8 | All carmakers | Audi A8 | |
| 2002 | +6% | +15% | +7% | - |
| Show all years | ||||
| 2003 | +6% | +15% | +8% | +3% |
| 2004 | +7% | +11% | +9% | +4% |
| 2005 | +8% | +12% | +10% | insignificant |
| 2006 | +9% | +16% | +11% | insignificant |
| 2007 | +11% | +16% | +12% | insignificant |
See below for the actual consumption of generations and versions of Audi A8.
2002 - 2007
Audi A8 2002 fuel economy
| Average advertised fuel consumption for petrol engines | 20.8 MPG 11.3 l/100km |
| Average real-world fuel consumption for petrol engines | 18.1 MPG 13.0 l/100km |
| Average real gasoline consumption difference * | +13% |
| Average advertised fuel consumption for diesel engines | 25.7 MPG 9.2 l/100km |
| Average real-world fuel consumption for diesel engines | 25.3 MPG 9.3 l/100km |
| Average real diesel consumption difference * | insignificant |
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 3.0 liter petrol engine | ||
| Audi A8 2004 3.0 220 HP automatic | 24.5 MPG 9.6 l/100km |
|
| Audi A8 2004 3.0 Long 220 HP automatic | 24.5 MPG 9.6 l/100km |
|
| 3.0 liter diesel engine | ||
| Audi A8 2004 3.0 TDI quattro 233 HP 4x4 automatic | 28.0 MPG 8.4 l/100km |
26.4 MPG 8.9 l/100km+6% |
| Audi A8 2005 3.0 TDI quattro Long 233 HP 4x4 automatic | 27.7 MPG 8.5 l/100km |
26.4 MPG 8.9 l/100km+5% |
| 3.2 liter petrol engine | ||
| Audi A8 2005 3.2 FSI 260 HP automatic | 24.0 MPG 9.8 l/100km |
19.6 MPG 12.0 l/100km+22% |
| Audi A8 2005 3.2 FSI Long 260 HP automatic | 24.0 MPG 9.8 l/100km |
19.6 MPG 12.0 l/100km+22% |
| Audi A8 2005 3.2 FSI quattro 260 HP 4x4 automatic | 21.4 MPG 11.0 l/100km |
19.6 MPG 12.0 l/100km+9% |
| 3.7 liter petrol engine | ||
| Audi A8 2002 3.7 quattro 280 HP 4x4 automatic | 20.1 MPG 11.7 l/100km |
17.4 MPG 13.5 l/100km+15% |
| 3.9 liter diesel engine | ||
| Audi A8 2003 3.9 4.0 TDI quattro 275 HP 4x4 automatic | 24.5 MPG 9.6 l/100km |
23.8 MPG 9.9 l/100km+3% |
| Audi A8 2003 3.9 4.0 TDI quattro Long 275 HP 4x4 automatic | 24.5 MPG 9.6 l/100km |
23.8 MPG 9.9 l/100km+3% |
| 4.2 liter petrol engine | ||
| Audi A8 2002 4.2 quattro 335 HP 4x4 automatic | 19.8 MPG 11.9 l/100km |
19.8 MPG 11.9 l/100km0% |
| Audi A8 2003 4.2 quattro Long 335 HP 4x4 automatic | 19.8 MPG 11.9 l/100km |
19.8 MPG 11.9 l/100km0% |
| Audi A8 2006 4.2 FSI quattro 350 HP 4x4 automatic | 21.6 MPG 10.9 l/100km |
17.2 MPG 13.7 l/100km+26% |
| Audi A8 2006 4.2 FSI quattro Long 350 HP 4x4 automatic | 21.6 MPG 10.9 l/100km |
17.2 MPG 13.7 l/100km+26% |
| 4.2 liter diesel engine | ||
| Audi A8 2005 4.2 TDI quattro 326 HP 4x4 automatic | 25.0 MPG 9.4 l/100km |
23.5 MPG 10.0 l/100km+6% |
| Audi A8 2005 4.2 TDI quattro Long 326 HP 4x4 automatic | 25.0 MPG 9.4 l/100km |
23.5 MPG 10.0 l/100km+6% |
| 6.0 liter petrol engine | ||
| Audi A8 2004 6.0 quattro Long 450 HP 4x4 automatic | 17.0 MPG 13.8 l/100km |
15.9 MPG 14.8 l/100km+7% |
| Audi A8 2005 6.0 quattro 450 HP 4x4 automatic | 16.0 MPG 14.7 l/100km |
16.1 MPG 14.6 l/100km-1% |
* - 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.