Buick LaCrosse, Allure, GM10 (USA / CAN)

Automatic transmission fluid capacity & service interval

Buick LaCrosse, Allure, GM10 (USA / CAN) automatic transmission fluid capacity ranges from 7 to 12,7 liters. Service intervals include checks every 12 months and changes at 80000 km or 160000 km. The data covers 6 configurations.

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

TypeSpecifications
LaCrosse 5.3 V8 (2007-2009)
  • Use: Normal
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
LaCrosse 5.3 V8 (2007-2009)
  • Use: Severe
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1
LaCrosse 3.6L V6 24V (2004-2010)
  • Use: Normal
  • Capacity 12,7 liter (Dry fill)
  • Capacity 9,5 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
LaCrosse 3.6L V6 24V (2004-2010)
  • Use: Severe
  • Capacity 12,7 liter (Dry fill)
  • Capacity 9,5 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1
LaCrosse 3.8 V6 (2004-2010)
  • Use: Normal
  • Capacity 12,7 liter (Dry fill)
  • Capacity 9,5 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 160000 km
  • Code: 4/1
LaCrosse 3.8 V6 (2004-2010)
  • Use: Severe
  • Capacity 12,7 liter (Dry fill)
  • Capacity 9,5 liter (Overhaul capacity)
  • Capacity 7 liter (Service fill)
  • Check 12 months
  • Change 80000 km
  • Code: 4/1

Additional Notes

  • The Buick LaCrosse 3.6L V6 24V and 3.8 V6 transaxles share identical automatic transmission fluid capacities across all three fill types: 12.7 liters for a dry fill, 9.5 liters for an overhaul, and 7 liters for a routine service fill.
  • A dry fill of 12.7 liters represents the total fluid volume required when filling a completely empty transmission, such as during a new unit installation, while the 9.5-liter overhaul capacity reflects the amount needed after a rebuild where some residual fluid remains in internal passages.
  • The 7-liter service fill across the 3.6L V6 24V and 3.8 V6 configurations accounts for only the fluid drained during a standard pan-drop service, which does not evacuate the torque converter or all internal circuits.
  • The 5.3 V8 LaCrosse, covering model years 2007-2009, lists only a 7-liter service fill with no dry fill or overhaul capacity figures in the specifications.
  • Under normal use conditions, all three engine configurations share a 160,000 km fluid change interval, paired with a 12-month fluid level check interval.
  • Under severe use conditions, the change interval for all three engine configurations is reduced to 80,000 km, exactly half the normal-use interval, while the 12-month check interval remains unchanged.
  • The 3.6L V6 24V and 3.8 V6 engines span the full 2004-2010 model year range, whereas the 5.3 V8 engine is limited to a narrower 2007-2009 range within that same generation.

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