Cadillac BLS (USA / CAN)

Coolant capacity & service interval

Cadillac BLS (USA / CAN) coolant capacity ranges from 7,5 to 9,6 liters. Service intervals include 12 months/30000 km and 48 months/60000 km. The data covers 6 configurations.

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

TypeSpecifications
BLS 2.8 V6 AWD (206 kW) (2008-2009)
  • Use: Normal
  • Between min and max.
  • Check 12 months/ 30000 km
BLS 2.0T FlexPower (2007-2009)
  • Use: Normal
  • Capacity 7,5 liter
  • Check 12 months/ 30000 km
BLS 2.0T (129 kW) (2006-2009)
  • Use: Normal
  • Capacity 7,5 liter
  • Check 48 months/ 60000 km
BLS 2.0T (154 kW) (2006-2009)
  • Use: Normal
  • Capacity 7,5 liter
  • Check 48 months/ 60000 km
BLS 2.0T AWD (154 kW) (2006-2009)
  • Use: Normal
  • Capacity 7,5 liter
  • Check 12 months/ 30000 km
BLS 2.8 V6 (188 kW) (2006-2009)
  • Use: Normal
  • Capacity 9,6 liter
  • Check 48 months/ 60000 km

Additional Notes

  • All BLS cooling system specifications apply under normal use conditions, meaning standard operating environments without the additional thermal or mechanical stress associated with severe-duty classifications.
  • The Cadillac BLS 2.0T variants at both 129 kW and 154 kW share an identical cooling system capacity of 7.5 liters, paired with a check interval of 48 months or 60,000 km, whichever comes first.
  • The BLS 2.0T AWD (154 kW) carries the same 7.5-liter cooling system capacity as the front-wheel-drive 154 kW variant, but the check interval is significantly shorter at 12 months or 30,000 km under normal use.
  • The BLS 2.0T FlexPower, which covers model years 2007-2009, also specifies a 7.5-liter cooling system capacity with a 12-month or 30,000 km check interval, matching the AWD variant's service frequency rather than the standard 2.0T interval.
  • The BLS 2.8 V6 (188 kW) has a notably larger cooling system capacity of 9.6 liters compared to the 7.5-liter figure across all 2.0T configurations, reflecting the greater coolant volume typically required by a larger-displacement six-cylinder engine.
  • The 9.6-liter capacity of the BLS 2.8 V6 (188 kW) is paired with a 48-month or 60,000 km check interval, aligning with the longer service schedule seen on the standard 2.0T variants rather than the shorter 12-month cycle.
  • The BLS 2.8 V6 AWD (206 kW), covering 2008-2009, does not list a discrete fill volume. Instead, the specification references a min-to-max range, indicating that service involves topping up to the reservoir's marked level rather than a measured total-system refill quantity.
  • The 2.8 V6 AWD (206 kW) carries the shortest check interval among all BLS coolant entries at 12 months or 30,000 km, the same frequency applied to the 2.0T AWD and FlexPower variants.

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