BMW 7 series 1998 fuel consumption
Year-to-year deviations of actual owner-reported average fuel consumption from advertised values
| Year | Gasoline cars | Diesel cars | ||
|---|---|---|---|---|
| All carmakers | BMW 7 series | All carmakers | BMW 7 series | |
| 1998 | +3% | insignificant | +4% | - |
| Show all years | ||||
| 1999 | +3% | insignificant | +5% | - |
| 2000 | +4% | insignificant | +5% | insignificant |
| 2001 | +5% | insignificant | +6% | insignificant |
See below for the actual consumption of generations and versions of BMW 7 series.
BMW 7 series 1998 E38 fuel economy
| Average advertised fuel consumption for petrol engines | 19.0 MPG 12.4 l/100km |
| Average real-world fuel consumption for petrol engines | 19.3 MPG 12.2 l/100km |
| Average real gasoline consumption difference * | insignificant |
| Average advertised fuel consumption for diesel engines | 26.1 MPG 9.0 l/100km |
| Average real-world fuel consumption for diesel engines | 27.4 MPG 8.6 l/100km |
| Average real diesel consumption difference * | insignificant |
According to advertised fuel consumption, a BMW 7 series 1998 with automatic transmission consumes on average 1.2 liters per 100 km or 13% more fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation BMW 7 series with automatic transmission consumes around 2.1 litres per 100 km or 24% more fuel than a version with the same engine but a manual gearbox.
Compared to similar cars from other manufacturers, the BMW 7 series fuel economy is slightly worse than average. The best fuel economy in its class of all the modifications has one with 2.8 petrol engine and manual transmission (BMW 728i 193 HP).
The table below shows the real and claimed fuel consumption and the differences for specific versions.
| Modification | Claimed consumption | Real consumption |
|---|---|---|
| 2.5 liter diesel engine | ||
| BMW 725tds 143 HP manual | 28.7 MPG 8.2 l/100km |
|
| BMW 725tds 143 HP automatic | 24.8 MPG 9.5 l/100km |
|
| 2.8 liter petrol engine | ||
| BMW 728i 193 HP manual | 23.5 MPG 10.0 l/100km |
24.5 MPG 9.6 l/100km-4% |
| BMW 728i 193 HP automatic | 21.4 MPG 11.0 l/100km |
21.8 MPG 10.8 l/100km-2% |
| BMW 728iL 193 HP automatic | 21.4 MPG 11.0 l/100km |
21.8 MPG 10.8 l/100km-2% |
| 2.9 liter diesel engine | ||
| BMW 730d 184 HP automatic | 27.0 MPG 8.7 l/100km |
25.8 MPG 9.1 l/100km+5% |
| BMW 730d 193 HP automatic | 26.7 MPG 8.8 l/100km |
26.4 MPG 8.9 l/100km+1% |
| 3.5 liter petrol engine | ||
| BMW 735i 238 HP automatic | 19.6 MPG 12.0 l/100km |
18.2 MPG 12.9 l/100km+8% |
| BMW 735iL 238 HP automatic | 19.6 MPG 12.0 l/100km |
18.2 MPG 12.9 l/100km+8% |
| 3.9 liter diesel engine | ||
| BMW 740d 238 HP automatic | 24.0 MPG 9.8 l/100km |
|
| 4.4 liter petrol engine | ||
| BMW 740i 286 HP automatic | 19.6 MPG 12.0 l/100km |
18.7 MPG 12.6 l/100km+5% |
| BMW 740iL 286 HP automatic | 18.1 MPG 13.0 l/100km |
16.9 MPG 13.9 l/100km+7% |
| 5.4 liter petrol engine | ||
| BMW 750i 326 HP automatic | 16.8 MPG 14.0 l/100km |
15.8 MPG 14.9 l/100km+6% |
| BMW 750iL 326 HP automatic | 16.8 MPG 14.0 l/100km |
15.8 MPG 14.9 l/100km+6% |
| BMW L7 High-Line 326 HP automatic | 15.7 MPG 15.0 l/100km |
15.8 MPG 14.9 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.