INFINITI QX4, JR50 (USA)

Differential fluid capacity & service interval

INFINITI QX4, JR50 (USA) differential fluid capacity ranges between min and max. Service intervals include checking at 15000 miles or 12 months, changing at 30000 miles or 24 months, and changing at 15000 km or 12 months. The data covers 24 configurations.

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

TypeSpecifications
  • QX4, JR50 (2002-2003)
  • Front
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Code: (4x4)
  • QX4, JR50 (2002-2003)
  • Front
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • Code: (4x4)
  • QX4, JR50 (2002-2003)
  • Front, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (2002-2003)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • QX4, JR50 (2002-2003)
  • Rear
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • QX4, JR50 (2002-2003)
  • Rear, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (2001-2001)
  • Front
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Code: (4x4)
  • QX4, JR50 (2001-2001)
  • Front
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • Code: (4x4)
  • QX4, JR50 (2001-2001)
  • Front, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (2001-2001)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • QX4, JR50 (2001-2001)
  • Rear
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • QX4, JR50 (2001-2001)
  • Rear, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (2000-2000)
  • Front
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Code: (4x4)
  • QX4, JR50 (2000-2000)
  • Front
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • Code: (4x4)
  • QX4, JR50 (2000-2000)
  • Front, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (2000-2000)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • QX4, JR50 (2000-2000)
  • Rear
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • QX4, JR50 (2000-2000)
  • Rear, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (1997-1999)
  • Front
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Code: (4x4)
  • QX4, JR50 (1997-1999)
  • Front
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • Code: (4x4)
  • QX4, JR50 (1997-1999)
  • Front, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months
  • QX4, JR50 (1997-1999)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • QX4, JR50 (1997-1999)
  • Rear
  • Use: Severe
  • Between min and max.
  • Check 15000 miles/ 12 months
  • Change 30000 miles/ 24 months
  • QX4, JR50 (1997-1999)
  • Rear, limited slip
  • Use: Normal
  • Between min and max.
  • Change 15000 km/ 12 months

Additional Notes

  • Across all model years covered, the INFINITI QX4 JR50 differential fluid level specification is expressed as "between min and max" rather than a fixed volume, which is characteristic of a service fill check rather than a measured overhaul refill quantity.
  • For both the front and rear differentials under normal use conditions, the specified interval is a fluid level check at 15,000 miles or 12 months, with no fluid change called out at that interval.
  • Under severe use conditions, the front and rear differentials share a two-part interval: a fluid level check at 15,000 miles or 12 months, followed by a full fluid change at 30,000 miles or 24 months.
  • The limited slip variants of both the front and rear differentials carry a fluid change interval of 15,000 km or 12 months under normal use conditions, which is notably more frequent than the check-only interval assigned to the standard differentials under the same use condition.
  • The limited slip differential change interval is expressed in kilometers rather than miles, while the standard differential intervals are expressed in miles, a distinction present consistently across all model year groups in the specifications.
  • The 1997-2003 model year span is divided into four specification groups: 1997-1999, 2000, 2001, and 2002-2003, and the differential fluid service intervals are identical across all four groups for every differential configuration listed.
  • The severe use change interval of 30,000 miles or 24 months for the standard front and rear differentials is exactly double the check interval of 15,000 miles or 12 months, placing the first fluid change at the second check cycle.

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