Honda NSX, NC1 (EU)

Coolant capacity & service interval

Honda NSX, NC1 (EU) coolant capacity ranges from 1,9 to 20,4 liters. Service intervals include checks at 20000 km or 12 months, and changes at 100000 km or 60 months and 200000 km or 120 months. The data covers 3 configurations.

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

TypeSpecifications
NSX, NC1 (2016-2021)
  • Use: Normal
  • Capacity 20,4 liter (Overhaul capacity)
  • Capacity 15,5 liter (Service fill)
  • Check 20000 km/ 12 months
  • Change 100000 km/ 60 months
NSX, NC1 (2016-2021)
  • Use: First change only
  • Capacity 20,4 liter (Overhaul capacity)
  • Capacity 15,5 liter (Service fill)
  • Check 20000 km/ 12 months
  • Change 200000 km/ 120 months
  • NSX, NC1 (2016-2021)
  • Inverter
  • Use: Normal
  • Capacity 2,4 liter (Overhaul capacity)
  • Capacity 1,9 liter (Service fill)

Additional Notes

  • The Honda NSX NC1 cooling system carries an overhaul capacity of 20.4 liters, which represents the total volume required when the system is fully drained and refilled from an empty state, such as after major component replacement.
  • The service fill capacity of 15.5 liters is the volume used during a routine coolant change, accounting for residual fluid that remains in the system even after draining.
  • Under normal use conditions, the main cooling system coolant is due for inspection every 20,000 km or 12 months, whichever comes first.
  • The normal-use change interval for the main cooling system is 100,000 km or 60 months, meaning coolant is replaced on a five-year or 100,000 km cycle under standard operating conditions.
  • A first-change-only condition applies a significantly extended change interval of 200,000 km or 120 months, which is ten years, reflecting the longer service life of the factory-fill coolant used at initial production.
  • The inspection interval of 20,000 km or 12 months remains the same under both the normal and first-change-only conditions, meaning the check schedule does not differ between the two use designations.
  • The inverter cooling circuit on the NSX NC1 is a separate system with its own capacity figures: 2.4 liters at overhaul and 1.9 liters at service fill, indicating a much smaller loop dedicated to the hybrid powertrain's power electronics.
  • No change interval or check interval data appears in the inverter cooling system row, meaning only capacity values are specified for that circuit.

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