Porsche 928 (USA)
Coolant capacity & service interval
The Porsche 928 (USA) uses coolant with a capacity of 16 liters. The data covers 2 configurations of this model.
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 Porsche 928 (USA) cooling system capacity is listed at 16 liters across both the standard 928 for 1986-1992 and the 928 GTS for 1991-1995, indicating a consistently large cooling system volume typical of high-displacement front-engine grand touring vehicles.
- A 16-liter coolant capacity places the 928's cooling system well above average for passenger cars, reflecting the thermal demands of the water-cooled V8 engine used throughout the model range covered by these specifications.
- Both configurations carry the same 16-liter figure under normal use conditions, meaning the capacity value applies to standard operating environments rather than severe or high-stress duty cycles.
- The 928 GTS variant shares the identical 16-liter cooling system capacity with the earlier standard 928, despite representing a later and more powerful evolution of the platform introduced from 1991 onward.