Real BMW 8 series fuel consumption
BMW 8 series real fuel consumption by user reviews is approximately 16% higher compared to official consumption. Above consumption difference is the average for all BMW 8 series produced from 1989 to 2022. For BMW 8 series produced up to 2006 the difference in real fuel consumption by user reviews is on average +10%, while for those produced after 2006 it is on average +22%.
See below for the actual consumption of each generation and version.
Average difference between user reported and stated consumption
All carmakers average fuel economy difference between advertised and user reported
See below for the actual consumption of each generation and version.
2018
BMW 8 series 2018 coupe
Average real petrol consumption difference: +19%
Real and specified fuel consumption and differences for specific BMW 8 series versions are shown in the table below.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 3.0BMW 840i 340 HP AT | 7.3 l/100km | |
| 3.0BMW 840i xDrive 340 HP AT 4x4 | 7.7 l/100km | |
| 3.0BMW 840d xDrive AT 4x4 | 6.2 l/100km | |
| 4.4BMW M850i xDrive AT 4x4 | 10.5 l/100km | 12.5 l/100km+19% |
2018
BMW 8 series 2018 cabrio
Average real petrol consumption difference: +25%
Real and specified fuel consumption and differences for specific BMW 8 series versions are shown in the table below.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 3.0BMW 840i 340 HP AT 4x4 | 7.5 l/100km | |
| 3.0BMW 840i xDrive 340 HP AT 4x4 | 7.8 l/100km | |
| 3.0BMW 840d xDrive AT 4x4 | 6.3 l/100km | |
| 4.4BMW M850i xDrive AT 4x4 | 10.0 l/100km | 12.5 l/100km+25% |
1989
BMW 8 series 1989 coupe
Average real petrol consumption difference: +5%
Real and specified fuel consumption and differences for specific BMW 8 series versions are shown in the table below.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 4.0BMW 840 Ci AT | 11.0 l/100km | 11.1 l/100km+1% |
| 4.0BMW 840i 4.0 MT | 12.8 l/100km | |
| 4.4BMW 840 Ci MT | 13.0 l/100km | |
| 4.4BMW 840 Ci AT | 13.0 l/100km | |
| 5.0BMW 850i 300 HP MT | 13.0 l/100km | 14.4 l/100km+11% |
| 5.0BMW 850i 300 HP AT | 13.0 l/100km | 15.0 l/100km+15% |
| 5.0BMW 850 Ci 300 HP MT | 13.0 l/100km | |
| 5.0BMW 850 Ci 300 HP AT | 13.0 l/100km | 14.6 l/100km+12% |
| 5.0BMW 850 Ci 300 HP AT | 14.0 l/100km | |
| 5.4BMW 850Ci 5.4 AT | 14.0 l/100km | |
| 5.6BMW 850 CSi MT | 18.0 l/100km | 17.3 l/100km-4% |
Real fuel consumption of other carmakers
The fuel consumption reported by users does not reflect the experience of all users, may be selective (depending on the driving conditions, driving style, technical condition of the car and other circumstances) and should therefore not be taken as a representative indicator.