The 2.5-liter Opel X25XE or Ecotec L80 engine was produced in England from 1994 to 2000 and installed in sport versions of well-known models such as Vectra, Omega, and Calibra. The range also included a more powerful version of this engine with the X25XEI index. The X20 series also includes the following power units: X20SE, X20XEV, X22SE, X22XE, and X30XE.
| Exact capacity | 2498 cm³ |
| Power system | distributed injection |
| Engine power | 170 HP |
| Torque | 230 nm |
| Engine block | cast iron V6 |
| Block head | aluminum 24v |
| Cylinder diameter | 81.6 mm |
| Piston stroke. | 79.6 mm |
| Compression ratio | 10.8 |
| Engine features | Multiram |
| Hydraulic compensator. | tak |
| Timing drive | belt |
| Timing phase adjuster | there is no |
| Turbocharging | there is no |
| What oils to use | 5.75 liters 5W-30 |
| Fuel type | 92 |
| Environmental class | EURO 2 |
| Approximate life expectancy | 400 000 HP |
| City | 14.7 litry |
| Route | 7.9 litry |
| Mixed | 9.1 litry |
The weight of the X25XE engine according to the catalog is 190 kg. The engine number X25XE is located at the junction of the block and the gearbox. Lubricant often leaks from under the valve cover and sometimes penetrates into the spark plug wells. It is not known for its tightness and oil cooler, hence the lubricant enters the coolant. The oil pickup is located close to the oil pan and any damage to it will cause a blockage. The timing belt has a lifespan of approximately 60,000 km, but if the valve breaks, it will be 100% damaged. This engine is quite cold and there may be problems starting it in very cold weather.
| Calibra A (C89) | 1996 - 1997 |
| Omega B (V94) | 1994 - 2000 |
| Vectra B (J96) | 1995 - 2000 |
The 1.6-liter Opel X16SZR engine was installed in German factories from 1995 to 2000 and used in basic versions of popular company models such as the Astra and Vectra. Until 1996, a slightly weaker version of this engine was also available, designated as X16SZ. The X10 series also includes the following engines: X14XE, X16XEL, X18XE, and X18XE1.
The 2.0-liter Opel X20XEV or Ecotec L34 engine was produced from 1994 to 2000 in Germany and was installed in most of the company's mid-size models at that time. After a thorough modernization in 1998, the engines received a new control unit and balancing shafts. The X20 series also includes the following engines: X20SE, X22SE, X22XE, X25XE, and X30XE.
The 1.4-liter engine Opel Z14XEP or LJ2 was produced in Austria from 2003 to 2010 and installed in many compact models of the company, such as Astra, Corsa, Combo, and Meriva. This engine is one of the most popular small engines with Twinport system. The Z10 series also includes engines: Z10XE, Z10XEP, Z12XE, Z12XEP, and Z14XE.
The 1.6-liter engine Opel Z16XE or Ecotec L91 was produced in Hungary from 2000 to 2005 and installed in the most popular models of that time, such as Astra, Vectra, Zafira. This powertrain is actually an updated version of the well-known engine X16XEL. The Z15 series also includes the following engines: Z16SE, Z16XEP, Z16XER, Z18XE, and Z18XER.
The 2.8-liter Audi ALG 2.8 V6 gasoline engine was produced by the company from 1997 to 2000 and installed in the most popular models of that era: A4 [B5], A6 C5, and A8 D2. This power unit replaced the similar ACK and made way for the APR engine. The EA835 line also includes the following engines: ALF, ARE, BDV, ABC, AAH, ACK, ASN, and BBJ.
The 2.5-liter Nissan QR25DD engine was produced from 2001 to 2007 at the factory in Japan and was commonly found only in one model, the Nissan Primera, in sedan and wagon body styles. This engine is known for being quite picky and demanding when it comes to fuel quality. The QR family also includes other engines: QR20DE, QR20DD, QR25DE, and QR25DER.