Opel Astra G, T98
Power steering fluid capacity & service interval
Opel Astra G, T98 uses power steering fluid with a capacity range of 0,7 to 1,1 liters. Service intervals occur every 24 months or 30000 km. The data covers 6 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Astra G 1.4 16V (66 kW) (1998-2001) |
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| Astra G 1.6 (55 kW) (1998-2001) |
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| Astra G 1.6 16V (74 kW) (1998-2001) |
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| Astra G 1.7 TD (50 kW) (1998-2000) |
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| Astra G 1.8 16V (85 kW) (1998-2001) |
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| Astra G 2.0 16V (100 kW) (1998-2000) |
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Additional Notes
- The Opel Astra G T98 power steering system capacity is listed at 1.1 liters across the 1.4 16V (66 kW), 1.6 (55 kW), 1.8 16V (85 kW), and 2.0 16V (100 kW) engine variants for the 1998-2001 period. In power steering systems, a capacity figure of this type typically represents the total fluid volume held within the reservoir and hydraulic circuit combined.
- The 1.6 16V (74 kW) variant carries a capacity range of 0.7-1.1 liters rather than a fixed value. A variable capacity range in a power steering system generally reflects differences in fluid level between the minimum and maximum marks on the reservoir, meaning the acceptable operating volume spans that interval rather than requiring an exact fill quantity.
- The 1.7 TD (50 kW) diesel variant is specified with a capacity of 1.0 liter, which is slightly lower than the 1.1-liter figure shared by the petrol variants. This minor difference may reflect a variation in the hydraulic pump or reservoir design associated with the diesel engine configuration.
- All six engine variants share an identical service interval of 24 months or 30,000 km under normal use conditions, whichever comes first. The dual-criterion interval structure means the fluid condition is evaluated on both a time basis and a distance basis, with the earlier threshold triggering the service check.
- The service action specified across all variants is a check rather than a fluid replacement. In power steering maintenance, a check interval typically involves inspecting the fluid level and condition, topping up if necessary, and assessing for contamination or degradation rather than performing a full drain and refill.
- The 1.7 TD (50 kW) and 2.0 16V (100 kW) variants have a listed production window of 1998-2000, two years shorter than the 1998-2001 range covering the remaining four variants. Despite the shorter model year span, the service interval specification for both remains consistent with the rest of the lineup at 24 months or 30,000 km.