Buick LaCrosse, Allure, GM10 (USA / CAN)

Coolant capacity & service interval

Buick LaCrosse, Allure, GM10 (USA / CAN) coolant capacity ranges from 10,4 to 12,6 liters. Service intervals include checking every 12 months and changing every 240000 km or 60 months. The data covers 3 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 12,6 liter
  • Check 12 months
  • Change 240000 km/ 60 months
LaCrosse 3.6L V6 24V (2004-2010)
  • Use: Normal
  • Capacity 10,4-10,6 liter
  • Check 12 months
  • Change 240000 km/ 60 months
LaCrosse 3.8 V6 (2004-2010)
  • Use: Normal
  • Capacity 10,6-11 liter
  • Check 12 months
  • Change 240000 km/ 60 months

Additional Notes

  • The Buick LaCrosse 5.3 V8 cooling system holds 12.6 liters, the largest capacity across all three engine configurations listed for the 2007-2009 model years.
  • The 3.8 V6 cooling system capacity spans a range of 10.6-11 liters, reflecting minor variation that can occur depending on specific build or equipment differences within the 2004-2010 production run.
  • The 3.6L V6 24V cooling system carries a capacity of 10.4-10.6 liters, which is the narrowest range among the three engines and sits at the lower end of the capacity figures listed.
  • All three engine configurations share an identical coolant change interval of 240,000 km or 60 months under normal use conditions, placing the service cycle on a five-year or distance-based schedule, whichever comes first.
  • The 60-month change interval across all configurations means coolant longevity is measured in years rather than the shorter annual cycles associated with older conventional coolant formulations.
  • A 12-month check interval applies to all three configurations under normal use, meaning the cooling system is inspected annually even though a full fluid change is not due until the 240,000 km or 60-month threshold is reached.
  • The 5.3 V8 application is limited to 2007-2009, a narrower span than the 2004-2010 range covered by both the 3.6L V6 24V and the 3.8 V6 configurations.

Other Systems