INFINITI QX50, J50 (USA)

Coolant capacity & service interval

INFINITI QX50, J50 (USA) coolant capacity ranges from 0,8 liter to 9 liter. Service intervals include checks at 10000 miles or 12 months, and changes at 75000 miles or 60 months and 105000 miles or 84 months. The data covers 4 configurations.

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

TypeSpecifications
QX50 3.7, J50 (2013-2017)
  • Use: Normal
  • Capacity 9 liter
  • Capacity 0,8 liter (Reservoir)
  • Check 10000 miles/ 12 months
  • Change 75000 miles/ 60 months
QX50 3.7, J50 (2013-2017)
  • Use: First change only
  • Capacity 9 liter
  • Capacity 0,8 liter (Reservoir)
  • Check 10000 miles/ 12 months
  • Change 105000 miles/ 84 months
QX50 3.7 AWD, J50 (2013-2017)
  • Use: Normal
  • Capacity 9 liter
  • Capacity 0,8 liter (Reservoir)
  • Check 10000 miles/ 12 months
  • Change 75000 miles/ 60 months
QX50 3.7 AWD, J50 (2013-2017)
  • Use: First change only
  • Capacity 9 liter
  • Capacity 0,8 liter (Reservoir)
  • Check 10000 miles/ 12 months
  • Change 105000 miles/ 84 months

Additional Notes

  • The INFINITI QX50 J50 cooling system holds a total capacity of 9 liters, which represents the full system fill volume including the engine block, cylinder head passages, and radiator circuits combined.
  • A separate reservoir capacity of 0.8 liters is listed alongside the main 9-liter figure, reflecting the overflow or expansion tank volume that sits outside the primary cooling circuit.
  • Both the AWD and non-AWD 3.7-liter configurations share identical capacities of 9 liters for the main system and 0.8 liters for the reservoir across the 2013-2017 model years.
  • The check interval is set at 10,000 miles or 12 months for both drivetrain variants, applying equally under normal use conditions and first-change-only conditions.
  • Under normal use conditions, the coolant change interval for both the AWD and non-AWD 3.7-liter variants is 75,000 miles or 60 months, whichever comes first.
  • A first-change-only interval of 105,000 miles or 84 months is specified separately from the normal change interval, indicating an extended service life applied exclusively to the initial factory coolant fill before reverting to the standard 75,000-mile cycle.
  • The 30,000-mile and 24-month difference between the first-change-only interval and the normal change interval reflects the longer service life typically associated with factory-fill coolant formulations used at the point of manufacture.

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