INFINITI M, Y34 (USA)

Differential fluid capacity & service interval

INFINITI M, Y34 (USA) differential fluid capacity ranges between min and max. Service intervals include checking at 15000 miles or 12 months and changing at 30000 miles or 24 months. The data covers 4 configurations.

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

TypeSpecifications
  • M45 (2004-2005)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • M45 (2004-2005)
  • Rear
  • Use: Severe
  • Between min and max.
  • Change 30000 miles/ 24 months
  • M45 (2003-2003)
  • Rear
  • Use: Normal
  • Between min and max.
  • Check 15000 miles/ 12 months
  • M45 (2003-2003)
  • Rear
  • Use: Severe
  • Between min and max.
  • Change 30000 miles/ 24 months

Additional Notes

  • The INFINITI M45 (Y34, USA) rear differential fluid level is expressed as "between min and max" rather than a fixed volume, which indicates a service fill specification checked against dipstick or fill-plug reference points rather than a measured drain-and-refill quantity.
  • Under normal use conditions, the rear differential fluid interval for the 2003 M45 calls for a check at 15,000 miles or 12 months, whichever comes first, with no fluid change required at that interval.
  • Under severe use conditions, the 2003 M45 rear differential fluid requires a change at 30,000 miles or 24 months, doubling both the mileage and time thresholds compared to the normal-use check interval.
  • The 2004-2005 M45 carries identical rear differential fluid intervals to the 2003 model year, with a normal-use check at 15,000 miles or 12 months and a severe-use change at 30,000 miles or 24 months.
  • The severe-use change interval of 30,000 miles or 24 months applies consistently across all model years in the 2003-2005 range, meaning the fluid is replaced rather than merely inspected when operating under those conditions.

Other Systems