Maserati Biturbo
Coolant capacity & service interval
Maserati Biturbo coolant capacity is 8,5 liters. Service intervals include 24 months or 22500 km/12 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Biturbo 228 (1988-1991) |
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| Biturbo 430 (1988-1991) |
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| Biturbo (1984-1988) |
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| Biturbo 425 (1984-1988) |
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Additional Notes
- The Maserati Biturbo cooling system capacity is 8.5 liters across all four listed configurations, spanning the 1984-1991 model range. A figure in this range is consistent with a twin-turbocharged engine's thermal management demands, where a larger coolant volume helps stabilize operating temperatures under load.
- The base Biturbo (1984-1988) and Biturbo 425 (1984-1988) share an identical coolant change interval of 24 months under normal use conditions, with no distance-based threshold specified alongside the time limit.
- The Biturbo 228 (1988-1991) and Biturbo 430 (1988-1991) carry a dual-condition change interval of 22,500 km or 12 months under normal use, whichever comes first. The shift from a 24-month time-only interval to a combined distance-and-time interval marks a notable difference between the earlier and later configurations.
- The 12-month interval on the 1988-1991 models is half the 24-month interval specified for the 1984-1988 models, meaning the later configurations call for twice the frequency of coolant renewal on a calendar basis.
- The 22,500 km distance threshold on the 1988-1991 configurations provides a mileage-based ceiling that the earlier 1984-1988 specifications do not include, making the service trigger for the later models dependent on whichever condition is reached first.
- The consistent 8.5-liter capacity across all four configurations indicates the cooling system volume did not change between the base Biturbo, the 425, the 228, and the 430 variants, despite differences in their respective service intervals.