INFINITI QX4, JR50 (USA)

Transfer case fluid capacity & service interval

INFINITI QX4, JR50 (USA) transfer case fluid capacity ranges from 1.9 to 2.3 liters. Service intervals require checks every 15000 miles or 12 months. The data covers 4 configurations.

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

TypeSpecifications
QX4, JR50 (2002-2003)
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
QX4, JR50 (2001-2001)
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
QX4, JR50 (2000-2000)
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
QX4, JR50 (1997-1999)
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months

Additional Notes

  • Across all model years covered, the INFINITI QX4 JR50 transfer case fluid level is specified as "between min and max," which refers to maintaining fluid within the marked range on the transfer case rather than filling to a fixed measured volume.
  • A check interval of 15,000 miles or 12 months, whichever comes first, applies uniformly to the 1997-2003 model year range under normal use conditions.
  • The 12-month time-based interval runs alongside the mileage interval, meaning a vehicle driven fewer than 15,000 miles in a year still reaches a service check point at the annual mark under normal use.
  • The specifications apply identically across the 1997-1999, 2000, 2001, and 2002-2003 groupings, indicating no variation in transfer case fluid service requirements across the full 1997-2003 production span.

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