Pontiac Firebird (EU)

Differential fluid capacity & service interval

Pontiac Firebird (EU) differential fluid capacity is 1,7 liters. Service intervals include checking every 12500 km or 12 months and changing every 12500 km. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • Firebird 3.4 (1994-1995)
  • Rear
  • Use: Normal
  • Capacity 1,7 liter
  • Check 12500 km/ 12 months
  • Firebird 3.4 (1994-1995)
  • Rear
  • Use: Severe
  • Capacity 1,7 liter
  • Change 12500 km
  • Firebird 3.4 (1994-1995)
  • Rear, limited slip
  • Use: Normal
  • Capacity 1,7 liter
  • Check 12500 km/ 12 months
  • Firebird 3.4 (1994-1995)
  • Rear, limited slip
  • Use: Severe
  • Capacity 1,7 liter
  • Change 12500 km
  • Firebird 5.7, Trans Am (1994-1997)
  • Rear
  • Use: Normal
  • Capacity 1,7 liter
  • Check 12500 km/ 12 months
  • Firebird 5.7, Trans Am (1994-1997)
  • Rear, limited slip
  • Use: Normal
  • Capacity 1,7 liter
  • Check 12500 km/ 12 months

Additional Notes

  • The rear differential capacity across all listed configurations of the Pontiac Firebird (EU) is 1.7 liters, a figure that applies uniformly to both the 3.4-liter engine variants from 1994-1995 and the 5.7-liter Trans Am variants from 1994-1997.
  • A capacity of 1.7 liters is consistent with a service fill specification, meaning the volume expected when topping up or replacing fluid in a unit already installed in the vehicle, rather than a full overhaul or bench-fill measurement.
  • For the Firebird 3.4 under normal use conditions, the rear differential and rear limited slip differential both carry a check interval of every 12,500 km or 12 months, whichever comes first.
  • Under severe use conditions, the 3.4-liter Firebird's rear differential and rear limited slip differential shift from a check interval to an active fluid change interval of 12,500 km, reflecting the increased stress placed on the fluid in demanding operating environments.
  • The 5.7-liter Trans Am rear differential and rear limited slip differential each carry only a normal-use check interval of 12,500 km or 12 months, with no severe-use interval listed in the specifications for those configurations.
  • The limited slip differential variants across both engine families share identical capacity and interval figures with their standard open differential counterparts, with the 1.7-liter capacity and 12,500 km check interval applying equally to both differential types under normal use.

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