INFINITI QX50, J55 (EU)

Coolant capacity & service interval

INFINITI QX50, J55 (EU) models utilize coolant with a capacity of 7,7 liters. Service intervals include checking at 40000 km/ 24 months, changing at 80000 km/ 48 months, and changing at 160000 km/ 96 months. The data covers 2 configurations.

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

TypeSpecifications
QX50 2.0 AWD (2018-2020)
  • Use: Normal
  • Capacity 7,7 liter
  • Check 40000 km/ 24 months
  • Change 80000 km/ 48 months
QX50 2.0 AWD (2018-2020)
  • Use: First change only
  • Capacity 7,7 liter
  • Check 40000 km/ 24 months
  • Change 160000 km/ 96 months

Additional Notes

  • The INFINITI QX50 J55 2.0 AWD carries a cooling system capacity of 7.7 liters, a figure consistent with a full service fill of the engine's cooling circuit rather than a partial top-up volume.
  • Under normal use conditions, the coolant change interval is set at 80,000 km or 48 months, whichever comes first, reflecting a standard replacement cycle for a modern ethylene glycol-based coolant formulation.
  • A first change only condition extends the initial coolant replacement interval significantly, reaching 160,000 km or 96 months. This longer interval is typically associated with a factory-fill coolant of higher purity or a long-life additive package that degrades more slowly than a standard refill fluid.
  • Regardless of use condition, the check interval remains fixed at 40,000 km or 24 months across both the normal and first change only rows for the 2018-2020 QX50 2.0 AWD.
  • The first change only interval of 96 months is exactly double the 48-month normal change interval, while the distance-based figure of 160,000 km is also double the 80,000 km normal threshold, indicating a proportional scaling between the two service schedules.

Other Systems