Porsche 928 (USA)
Power steering fluid capacity & service interval
The Porsche 928 (USA) uses power steering fluid with a capacity of 0.7 liter. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| 928 GTS (1991-1995) |
|
| 928 (1986-1992) |
|
Additional Notes
- The 0.7 liter capacity listed for both configurations represents a service fill volume, reflecting the amount of fluid held within the power steering reservoir and associated lines under normal operating conditions rather than a full system overhaul figure.
- The Porsche 928 (1986-1992) and the 928 GTS (1991-1995) share an identical 0.7 liter power steering fluid capacity, meaning no variation in reservoir or system volume exists between the standard and GTS variants despite differences in engine specification and trim level.
- Both rows carry a normal use condition, which ties the 0.7 liter capacity figure to standard driving circumstances rather than a severe or first-change-only service scenario.
- The 928 GTS designation covers a model year range beginning in 1991, which creates an overlap period from 1991 to 1992 during which both the standard 928 and the GTS were present in the specifications, each retaining the same 0.7 liter power steering fluid capacity.