Maserati Biturbo

Automatic transmission fluid capacity & service interval

Maserati Biturbo automatic transmission fluid capacity is 5,5 liters. Service intervals include 30000 km or 36 months 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.

TypeSpecifications
Biturbo 228 (1988-1991)
  • Use: Normal
  • Capacity 5,5 liter
  • Change 45000 km/ 24 months
  • Code: ZF 4/1
Biturbo 430 (1988-1991)
  • Use: Normal
  • Capacity 5,5 liter
  • Change 45000 km/ 24 months
  • Code: ZF 3/1
Biturbo (1984-1988)
  • Use: Normal
  • Capacity 5,5 liter
  • Change 30000 km/ 36 months
Biturbo 425 (1984-1988)
  • Use: Normal
  • Capacity 5,5 liter
  • Change 30000 km/ 36 months
  • Code: ZF 3/1

Additional Notes

  • The Maserati Biturbo automatic transmission fluid capacity is 5.5 liters across all four listed configurations, spanning the 1984-1991 model range. A uniform capacity at this level is consistent with a full service fill that accounts for the fluid retained within the torque converter and valve body, not just the pan volume alone.
  • The 1984-1988 Biturbo and Biturbo 425 share identical service intervals under normal use conditions, with a change interval of 30,000 km or 36 months, whichever comes first. The dual-trigger format means a time-based threshold of three years applies even when mileage accumulation is low.
  • The Biturbo 228 (1988-1991) and Biturbo 430 (1988-1991) carry a revised change interval of 45,000 km or 24 months under normal use. Compared to the earlier 1984-1988 configurations, the distance threshold increases by 15,000 km while the time limit shortens by 12 months.
  • The shift from a 36-month to a 24-month time ceiling in the 1988-1991 configurations means fluid age becomes the controlling factor more quickly in low-mileage use, regardless of the extended kilometer allowance.
  • All four configurations share the same 5.5-liter capacity, which indicates no mechanical redesign of the transmission housing between the 1984-1988 and 1988-1991 variants affected total fluid volume.
  • The Biturbo 425 (1984-1988) and the base Biturbo (1984-1988) are specified with identical capacity and interval figures, suggesting the trim differentiation between those two variants did not extend to automatic transmission service requirements.

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