Pontiac Bonneville (USA / CAN)

Automatic transmission fluid capacity & service interval

Pontiac Bonneville (USA / CAN) uses automatic transmission fluid with a capacity range of 7 to 14,2 liters. The service interval for fluid change is 83000 km. The data covers 3 configurations.

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

TypeSpecifications
Bonneville 4.6 V8 32V (2004-2005)
  • Use: Normal
  • Capacity 14,2 liter
  • Change 83000 km
  • Code: 4/1
Bonneville 3.8 V6 (1999-2005)
  • Use: Normal
  • Capacity 7 liter
  • Change 83000 km
  • Code: 4/1
Bonneville 3.8 V6 Supercharged (1999-2004)
  • Use: Normal
  • Capacity 7 liter
  • Change 83000 km
  • Code: 4/1

Additional Notes

  • The Pontiac Bonneville 3.8 V6 automatic transaxle holds 7 liters of fluid, a figure that applies to both the standard and supercharged variants of that engine across their respective model year ranges.
  • The 3.8 V6 Supercharged configuration, covering 1999-2004, shares the same 7-liter transaxle capacity as the naturally aspirated 3.8 V6, despite the added mechanical load a supercharger places on the drivetrain.
  • The 4.6 V8 32V, introduced for 2004-2005, carries a transaxle fluid capacity of 14.2 liters, which is more than double the 7-liter figure associated with the V6 configurations.
  • A capacity of 14.2 liters in an automatic transaxle typically reflects a full overhaul or dry-fill figure, accounting for fluid held within the torque converter and all internal passages, rather than a simple drain-and-refill service amount.
  • All three configurations share an identical fluid change interval of 83,000 km under normal use conditions, regardless of engine displacement or forced induction.
  • The 83,000 km normal-use interval applies uniformly across the 1999-2005 model year span for the 3.8 V6, meaning no mid-cycle revision to the service schedule is reflected in the specifications for that engine.

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