Note: This Technical Intormation Bulletin contains and supersedes all previous Technical Information Bulletins on the subject of "Octane Number Plugs".
Subject:
Octane Number Plugs (Octane Number Coding), Choice of Fuel
Vehicles:
All vehicles with octane number plugs. The following tables list all possible vehicle / engine / octane number plug combinations. On hand - over of the vehicle by the Sales personnel, the customer should be instructed about the significance and correct coding of the octane number plug.
Incorrect coding can lead to engine damage, e. g. 91 RON fuel used with 95 RON coding.
The octane numbers listed first indicate the fuel recommended ex works for each engine.
Engines that are not listed are equipped with knock control or cannot be adapted.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Corsa - A / Nova | C 12NZ | black | 95 / 91 | |
| C 14NZ | black | 95 / 91 | ||
| C 14SE | brown | 95 / 98 | ||
| 1) | black | 95 / 91 | ||
| C 16NZ | black | 95 / 91 | ||
| C 16SE | brown | 95 / 98 | ||
| 1) | black | 95 / 91 | ||
| C 16SEI | black | 95 / 91 | ||
| E 16SE | black | 95 / 91 | ||
| Corsa - B | 12NZ | black | 95 / 91 | |
| C 12NZ | black | 95 / 91 | ||
| C 14NZ | black | 95 / 91 | ||
| C 14SE | not for Mexiko | brown | 95 / 98 | |
| Mexiko only | black | 95 / 91 | ||
| 1) | black | 95 / 91 |
1) If unleaded premium fuel is not available, use of unleaded regular tuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Kadett - E / Astra - E | C 14NZ | black | 95 / 91 | |
| 16SV | brown | 95 / 98 | ||
| 12.6.87 - 31.1.89 1) | white | 95 / 98 | ||
| C 16LZ | black | 95 / 91 | ||
| C 16NZ | black | 95 / 91 | ||
| E 16NZ | black | 95 / 91 | ||
| 18SE | brown | 95 / 98 | ||
| C 18NZ | black | 95 / 91 | ||
| E 18NV | blue | 95 / 91 | ||
| 12.6.87 - 31.12.87 1) | grey | 95 / 95 | ||
| 20NE | brown | 95 / 98 | ||
| 2) | black | 95 / 91 | ||
| 20SEH | brown | 95 / 98 | ||
| 20SER | brown | 95 / 98 | ||
| C 20NE | black | 95 / 91 | ||
| 12.6.87 - 31.12.87 1) | orange | 95 / 91 |
1) Production period
2) If unleaded premium fuel is not available, use of unleaded regular fuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Astra - F | C 14NZ | yellow | 95 / 91 | |
| 14SE | MT | white | 95 / 98 | |
| AT | brown | 95 / 98 | ||
| C 14SE | MT | white | 95 / 98 | |
| 1) | yellow | 95 / 91 | ||
| AT | brown | 95 / 98 | ||
| 1) | black | 95 / 91 | ||
| C 16NZ | yellow | 95 / 91 | ||
| C 16SE | MT not Estate | brown | 95 / 98 | |
| 1) | black | 95 / 91 | ||
| MT Estate only | white | 95 / 98 | ||
| 1) | yellow | 95 / 91 | ||
| AT | brown | 95 / 98 | ||
| 1) | black | 95 / 91 | ||
| New Zealand only | black | 95 / 91 |
1) If unleaded premium fuel is not available, use of unleaded regular fuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Astra - F | 16LZ2 | 1) | grey | 91 / 87 |
| C 18NZ | MT | yellow | 95 / 91 | |
| AT | black | 95 / 91 | ||
| C 20NE | not Japan | yellow | 95 / 91 | |
| Japan only | black | 95 / 91 |
1) If 87RON is used, slight loss of output and torque
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Ascona - C / Cavalier | 16SV | brown | 95 / 98 | |
| as of 12.6.87 1) | white | 95 / 98 | ||
| C 16LZ | black | 95 / 91 | ||
| C 16NZ | black | 95 / 91 | ||
| E 16NZ | black | 95 / 91 | ||
| 18SE | brown | 95 / 98 | ||
| 12.6.87 - 31.12.87 1) | white | 95 / 98 | ||
| E 18NV | blue | 95 / 91 | ||
| 12.6.87 - 31.12.87 1) | grey | 95 / 95 | ||
| 20NE | brown | 95 / 98 | ||
| 2) | black | 95 / 91 | ||
| 20SEH | brown | 95 / 98 | ||
| C 20NE | black | 95 / 91 | ||
| as of 12.6.87 1) | orange | 95 / 91 | ||
| C 20NEF | black | 95 / 91 | ||
| as of 12.6.87 1) | orange | 95 / 91 |
1) Production period
2) If unleaded premium fuel is not available, use of unleaded regular fuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Vectra - A / Cavalier | 16SV | brown | 95 / 98 | |
| C 16NZ | black | 95 / 91 | ||
| E 16NZ | black | 95 / 91 | ||
| C 16NZ2 | black | 95 / 91 | ||
| 18SV | brown | 95 / 98 | ||
| C 18NZ | black | 95 / 91 | ||
| E 18NVR | blue | 95 / 91 | ||
| 20NE | MT up to MJ'92 1) | yellow | 95 / 91 | |
| MT as of MJ'92 1) | brown | 95 / 98 | ||
| AT and 4x4 | brown | 95 / 98 | ||
| MT Saudi Arabia | yellow | 95 / 91 | ||
| AT Saudi Arabia | black | 95 / 91 | ||
| MT Egypt | yellow | 95 / 91 | ||
| AT Egypt | black | 95 / 91 | ||
| 20SEH | MT up to MJ'90 1) | white | 95 / 98 | |
| MT as of MJ'90 1) | brown | 95 / 98 | ||
| AT and 4x4 | brown | 95 / 98 |
1) Production period
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Vectra - A / Cavalier | C 20NE | MT | yellow | 95 / 91 |
| AT and 4x4 | black | 95 / 91 | ||
| C 20NEF | MT | yellow | 95 / 91 | |
| AT | black | 95 / 91 | ||
| Vectra - B | 16LZ2 | 1) | grey | 91 / 87 |
| Calibra | C 20NE | MT | yellow | 95 / 91 |
| AT and 4x4 | black | 95 / 91 | ||
| Omega - A / Carlton | 18NV | black | 95 / 91 | |
| 18SV | brown | 95 / 98 | ||
| 12.6.87 - 31.12.87 2) | green | 95 / 98 | ||
| 18SEH | brown | 95 / 98 | ||
| 12.6.87 - 31.12.87 2) | white | 95 / 98 | ||
| E 18NVR | blue | 95 / 91 | ||
| 20SE | MT up to 11.6.87 2) | white | 95 / 98 | |
| AT up to 11.6.87 2) | brown | 95 / 98 | ||
| 12.6.87 as of MJ'90 2) | violet | 95 / 98 | ||
| as of MJ'90 2) | brown | 95 / 98 |
1) If 87 RON is used, slight loss of output and torque
2) Production period
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Omega - A / Carlton | C 20NE | MT up to 11.6.87 1) | yellow | 95 / 91 |
| AT up to 11.6.87 1) | black | 95 / 91 | ||
| 12.6.87 up to MJ'90 1) | orange | 95 / 91 | ||
| MT as of MJ'90 1) | yellow | 95 / 91 | ||
| AT as of MJ'90 1) | black | 95 / 91 | ||
| C 20NEF | MT up to 11.6.87 1) | yellow | 95 / 91 | |
| AT up to 11.6.87 1) | black | 95 / 91 | ||
| as of 12.6.87 1) | orange | 95 / 91 | ||
| C 20NEJ | MT | yellow | 95 / 91 | |
| AT | black | 95 / 91 | ||
| C 24NE | black | 95 / 91 | ||
| C 26NE | brown | 95 / 98 | ||
| 2) | black | 95 / 91 | ||
| C 30LE | black | 95 / 91 | ||
| C 30NE | up to MJ'91 1) | black | 95 / 91 | |
| as of MJ'91 1) | brown | 95 / 98 | ||
| 2) | black | 95 / 91 |
1) Production period
2) If unleaded premium fuel is not available, use of unleaded regular fuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Vehicle type | Engine | Remarks | Colour | RON |
| Senator - B | C 26NE | brown | 95 / 98 | |
| 1) | black | 95 / 91 | ||
| C 30LE | black | 95 / 91 | ||
| C 30NE | up to MJ'91 2) | black | 95 / 91 | |
| as of MJ'91 2) | brown | 95 / 98 | ||
| 1) | black | 95 / 91 | ||
| Frontera | C 20NE | black | 95 / 91 | |
| C 24NE | black | 95 / 91 |
1) If unleaded premium fuel is not available, use of unleaded regular fuel with 91 RON is possible, provided that high engine loads, full load operation and operation in mountainous areas with trailer load or high payloads are avoided.
2) Production period
| Survey of octane number plugs | ||||
|---|---|---|---|---|
| Colour | Octane number | Resistance W | Part no. | Catalogue no. |
| blue | 95 / 91 | 0 / ¥ | 90 241 961 | 12 86 525 |
| white | 95 / 98 | 2200 / 750 | 90 241 962 | 12 86 526 |
| yellow | 95 / 91 | 2200 / ¥ | 90 241 963 | 12 86 527 |
| grey | 95 / 95 | ¥ / ¥ | 90 243 535 | 12 86 530 |
| black | 95 / 91 | 220 / 0 | 90 276 397 | 12 86 521 |
| green | 95 / 98 | 1200 / 750 | 90 276 398 | 12 86 532 |
| brown | 95 / 98 | 220 / 470 | 90 276 401 | 12 86 522 |
| violet | 95 / 98 | ¥ / 2200 | 90 276 402 | 12 86 533 |
| orange | 95 / 91 | ¥ / 750 | 90 277 921 | 12 86 529 |
| grey | 91 / 87 | 0 / 220 | 90 506 206 | 12 86 541 |
Note:
For octane number plugs with the colour GREY, check the octane number coding, as there are two grey octane number plugs with different part / catalogue numbers.