Maserati Biturbo

Manual transmission fluid capacity & service interval

Maserati Biturbo manual transmission fluid capacity is 1,7 liters. Service intervals include checks at 7500 km and 10000 km, with fluid changes at 22500 km or 12 months and 40000 km. 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 1,7 liter
  • Check 7500 km
  • Change 22500 km/ 12 months
  • Code: 5/1
Biturbo 430 (1988-1991)
  • Use: Normal
  • Capacity 1,7 liter
  • Check 7500 km
  • Change 22500 km/ 12 months
  • Code: 5/1
Biturbo (1984-1988)
  • Use: Normal
  • Capacity 1,7 liter
  • Check 10000 km
  • Change 40000 km
  • Code: 5/1
Biturbo 425 (1984-1988)
  • Use: Normal
  • Capacity 1,7 liter
  • Check 10000 km
  • Change 40000 km
  • Code: 5/1

Additional Notes

  • Across all four Maserati Biturbo variants covered in the specifications, the manual transmission fluid capacity is 1.7 liters, a figure consistent with a service fill rather than a full overhaul, which would typically require a higher volume to account for residual fluid in disassembled components.
  • The Biturbo and Biturbo 425, both spanning 1984-1988, share identical service intervals: a fluid level check at every 10,000 km and a full fluid change at 40,000 km under normal use conditions.
  • The Biturbo 228 and Biturbo 430, both covering 1988-1991, carry a notably shorter change interval of 22,500 km compared to the 40,000 km interval of the earlier variants, representing a reduction of more than 40 percent between the two generations.
  • For the 1988-1991 variants, the change interval also carries a 12-month time limit alongside the 22,500 km distance threshold, meaning whichever condition is reached first under normal use would trigger a fluid change.
  • The check interval for the 1988-1991 Biturbo 228 and Biturbo 430 is set at 7,500 km, compared to 10,000 km for the 1984-1988 models, indicating a more frequent monitoring schedule in the later variants despite the same 1.7-liter capacity.
  • The 1984-1988 Biturbo and Biturbo 425 share every specification identically, including the 1.7-liter capacity, the 10,000 km check interval, and the 40,000 km change interval, suggesting no differentiation in manual transmission servicing requirements between those two variants.

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