Maserati Biturbo
Differential fluid capacity & service interval
Maserati Biturbo differential fluid capacity ranges from 0,8 to 1,3 liters. Service intervals include checks at 7500 km and 10000 km, with fluid changes at 40000 km and 45000 km or 24 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Maserati Biturbo (1984-1988) carries a rear differential fluid capacity of 0.8 liter, which is notably smaller than the 1.3 liter capacity shared by the 425, 430, and 228 variants, suggesting a physically smaller differential unit in the base model.
- The Biturbo 425 (1984-1988) and the base Biturbo share the same 40000 km change interval for rear differential fluid, aligning the two models on a common service schedule despite their differing capacities.
- The Biturbo 228 and Biturbo 430, both covering the 1988-1991 period, share identical rear differential fluid specifications: a 1.3 liter capacity, a 7500 km check interval, and a change interval of 45000 km or 24 months, whichever comes first.
- The 1988-1991 models introduce a time-based dimension to the change interval, requiring a fluid change at 45000 km or 24 months under normal use conditions, whereas the 1984-1988 models specify only a distance-based change interval of 40000 km.
- The check interval for the 1988-1991 Biturbo 228 and 430 is set at 7500 km, which is shorter than the 10000 km check interval applied to the 1984-1988 Biturbo and Biturbo 425, indicating more frequent monitoring requirements in the later configurations.
- A rear differential fluid capacity of 1.3 liters, as seen in the Biturbo 425, 430, and 228, is consistent with a conventional limited-slip or open differential unit of moderate size typical of rear-wheel-drive sports sedans of the era.