Ligier Optimax

Coolant capacity & service interval

Ligier Optimax coolant capacity ranges from 3 to 4 liters. Service intervals are 50000 km or 24 months and 30000 km or 36 months. The data covers 2 configurations.

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

TypeSpecifications
Optimax 440 DCi (2009- )
  • Use: Normal
  • Capacity 3 liter
  • Change 50000 km/ 24 months
Optimax 505 (2008- )
  • Use: Normal
  • Capacity 4 liter
  • Change 30000 km/ 36 months

Additional Notes

  • The Ligier Optimax 440 DCi carries a 3-liter cooling system capacity, while the Optimax 505 holds a notably larger 4-liter capacity, reflecting a meaningful difference in engine thermal management requirements between the two configurations.
  • The Optimax 440 DCi cooling system calls for a coolant change at 50,000 km or 24 months under normal use conditions, whichever comes first.
  • The Optimax 505 cooling system specifies a change interval of 30,000 km or 36 months under normal use conditions, a shorter distance threshold than the 440 DCi despite carrying a longer time allowance.
  • The 440 DCi's 50,000 km distance interval is considerably longer than the 505's 30,000 km interval, meaning the 440 DCi travels a greater distance between coolant services under equivalent normal use conditions.
  • The 505's 36-month time-based interval exceeds the 440 DCi's 24-month limit by a full year, indicating that calendar aging of the coolant is weighted differently across the two engine variants.

Other Systems