The F25 5-speed manual transmission was produced by the Getrag concern from 1993 to 2000 and was installed in Opel Vectra and Calibra models with the 2.5-liter C25XE or X25XE engine. This transmission was also installed in the second-generation Saab 900 with the similar B258i engine.
Specifications
| Type | manual transmission |
| Number of gears | 5 |
| Type of drive | front |
| Engine volume, l | up to 2.5 |
| Torque output, Nm | up to 250 |
| Recommended oil | API GL-4, SAE 75W-85 |
| Oil capacity, liter | 2.0 |
| Replacing the oil | every 60 000 km |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 46 |
Gear ratios Opel F25
Using the example of a 1994 Opel Calibra with a 2.5 liter engine:
| Main | 3.82 |
| 1st | 3.38 |
| 2nd | 1.76 |
| 3rd | 1.12 |
| 4th | 0.89 |
| 5th | 0.77 |
| Reverse | 3.17 |
Using
The transmission was installed on:
- Opel Calibra A (C89) in 1993 – 1997
- Opel Sintra A (APV) in 1996 – 1999
- Opel Vectra A (J89) in 1993 – 1995
- Opel Vectra B (J96) in 1995 – 2000
- Saab 900 II (NG) in 1993 – 1998
Disadvantages of the Opel F25 gearbox
- The shift lever may stick due to wear on the plastic sleeve and the shift linkage bushing;
- The gear selector mechanism also becomes loose quite quickly in this manual transmission;
- At high mileage, the bearings often hum, especially on the input shaft;
- Many owners add more than 2 liters of oil to the transmission, and the noise stops.
