Vauxhall Firenza

Coolant capacity & service interval

The Vauxhall Firenza coolant specifications cover a capacity range of 5.8 to 8 liters including the heater. Six configurations of the model are included in the data.

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

TypeSpecifications
Firenza 1.3 (1972-1975)
  • Use: Normal
  • Capacity 5,8 liter (+ heater)
Firenza 1.8 (1972-1975)
  • Use: Normal
  • Capacity 8 liter (+ heater)
Firenza 2.3 (1972-1975)
  • Use: Normal
  • Capacity 8 liter (+ heater)
Firenza 1.2 (1971-1972)
  • Use: Normal
  • Capacity 5,8 liter (+ heater)
Firenza 2.0 (1971-1972)
  • Use: Normal
  • Capacity 7,95 liter (+ heater)
Firenza 1.6 (1970-1972)
  • Use: Normal
  • Capacity 7,9 liter (+ heater)

Additional Notes

  • The Vauxhall Firenza coolant capacity figures are given as cooling system fills that exclude the heater core volume, with the notation "(+ heater)" indicating the heater circuit adds an unspecified additional volume on top of the stated capacity.
  • The 1.2 and 1.3 engines share an identical cooling system capacity of 5.8 liters, the smallest figure across all Firenza engine variants in the specifications.
  • The 1.6 engine, produced in the 1970-1972 period, carries a cooling system capacity of 7.9 liters, placing it in the mid-range of the capacities listed and reflecting the larger displacement relative to the 1.2 and 1.3 units.
  • The 2.0 engine has a capacity of 7.95 liters, a value that sits fractionally below the 8.0 liters listed for both the 1.8 and 2.3 engines, despite the 2.0 having a larger displacement than the 1.8.
  • The 1.8 and 2.3 engines both share a cooling system capacity of exactly 8.0 liters, the highest figure recorded across all six Firenza configurations in the specifications.
  • All six configurations carry a use condition of normal, meaning none of the capacity figures are associated with a severe-duty or alternative service condition.
  • The 1.3 replaced the 1.2 in the Firenza lineup from 1972 onward, yet the cooling system capacity remained unchanged at 5.8 liters across both engine generations.
  • The 2.3 replaced the 2.0 from 1972 onward, and the transition brought a shift from 7.95 liters to 8.0 liters in cooling system capacity, a marginal increase of 0.05 liters.

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