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Opel Omega 1997 fuel consumption

Opel Omega from 1997 to 1999 real fuel consumption according to user reports is approximately 6% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 3% higher, but for diesel engines is approximately 10% higher. Since 1997 the Opel Omega average difference between owner-reported real-world fuel consumption and declared fuel economy has been similar to average.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline carsDiesel cars
All carmakersOpel OmegaAll carmakersOpel Omega
1997+3%insignificant+3%+13%
Show all years
1998+3%insignificant+4%+13%
1999+3%insignificant+5%+13%

See below for the actual consumption of generations and versions of Opel Omega.

1997 - 1999

Opel Omega 1997 wagon fuel economy

Average advertised fuel consumption for petrol engines21.7 MPG
10.9 l/100km
Average real-world fuel consumption for petrol engines23.3 MPG
10.1 l/100km
Average real gasoline consumption difference *insignificant
Average advertised fuel consumption for diesel engines31.2 MPG
7.5 l/100km
Average real-world fuel consumption for diesel engines27.7 MPG
8.5 l/100km
Average real diesel consumption difference *+13%

According to advertised fuel consumption, a Opel Omega 1997 with automatic transmission consumes on average 0.6 liters per 100 km or 6% more fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Opel Omega with automatic transmission consumes around 1.1 litres per 100 km or 12% more fuel than a version with the same engine but a manual gearbox.

The best real fuel economy in its class according to user reviews of all the modifications has modification with 2.5 petrol engine and manual transmission (Opel Omega 1997 Stationwagon 2.5i-V6 170 HP). However, of all modifications the best advertised fuel economy in its class has Opel Omega with 2.5 diesel engine and automatic transmission (Opel Omega 1997 Stationwagon 2.5 TD 131 HP).

ModificationClaimed consumptionReal consumption
2.0 liter petrol engine
Opel Omega 1997 Stationwagon 2.0i 116 HP manual 23.5 MPG
10.0 l/100km
24.8 MPG
9.5 l/100km-5%
Opel Omega 1997 Stationwagon 2.0i 116 HP automatic 22.4 MPG
10.5 l/100km
Opel Omega 1997 Stationwagon 2.0i-16V 136 HP manual 24.2 MPG
9.7 l/100km
23.1 MPG
10.2 l/100km+5%
Opel Omega 1997 Stationwagon 2.0i-16V 136 HP automatic 22.0 MPG
10.7 l/100km
21.6 MPG
10.9 l/100km+2%
2.0 liter diesel engine
Opel Omega 1997 Stationwagon 2.0 DTi-16V 100 HP manual 32.7 MPG
7.2 l/100km
30.5 MPG
7.7 l/100km+7%
2.5 liter petrol engine
Opel Omega 1997 Stationwagon 2.5i-V6 170 HP manual 21.4 MPG
11.0 l/100km
22.4 MPG
10.5 l/100km-5%
Opel Omega 1997 Stationwagon 2.5i-V6 170 HP automatic 20.1 MPG
11.7 l/100km
20.3 MPG
11.6 l/100km-1%
2.5 liter diesel engine
Opel Omega 1997 Stationwagon 2.5 TD 131 HP manual 30.5 MPG
7.7 l/100km
28.0 MPG
8.4 l/100km+9%
Opel Omega 1997 Stationwagon 2.5 TD 131 HP automatic 30.5 MPG
7.7 l/100km
25.0 MPG
9.4 l/100km+22%
3.0 liter petrol engine
Opel Omega 1997 Stationwagon 3.0i-V6 211 HP manual 21.0 MPG
11.2 l/100km
20.1 MPG
11.7 l/100km+4%
Opel Omega 1997 Stationwagon 3.0i-V6 211 HP automatic 19.4 MPG
12.1 l/100km
19.1 MPG
12.3 l/100km+2%

* - 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.