Pontiac Grand Am (USA / CAN)

Coolant capacity & service interval

Pontiac Grand Am (USA / CAN) coolant capacity ranges from 8,2 to 12,9 liters. The service interval for coolant is 150000 miles. The data covers 2 configurations.

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

TypeSpecifications
Grand Am 2.2 16V (2002-2005)
  • Use: Normal
  • Capacity 8,2 liter
  • Change 150000 miles
Grand Am 3.4 V6 (1999-2005)
  • Use: Normal
  • Capacity 12,9 liter
  • Change 150000 miles

Additional Notes

  • The Grand Am 3.4 V6 cooling system holds 12.9 liters of coolant, a notably larger capacity than the 8.2 liters specified for the 2.2 16V engine, reflecting the greater thermal demands of a six-cylinder configuration.
  • Both engine variants share the same 150,000-mile coolant change interval under normal use conditions, placing them among the longer-interval cooling system schedules common to vehicles using extended-life antifreeze formulations from that era.
  • The 8.2-liter capacity listed for the Pontiac Grand Am 2.2 16V applies to model years 2002-2005, meaning earlier Grand Am configurations from 1999-2001 are not covered by that figure.
  • A cooling system capacity of 12.9 liters for the 3.4 V6 covers the full 1999-2005 span of that engine's availability in the Grand Am, indicating a consistent system volume across all those model years.
  • The 150,000-mile interval on both engines reflects a normal use classification, which generally corresponds to highway-weighted driving cycles and moderate ambient temperatures rather than stop-and-go or extreme-climate operation.

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