INFINITI FX, S51 (EU)

Transfer case fluid capacity & service interval

INFINITI FX, S51 (EU) transfer case fluid capacity is 1 liter. Service intervals include checks at 15000 km/12 months and 20000 km/12 months. The data covers 6 configurations.

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

TypeSpecifications
FX37, S51 (2011-2013)
  • Use: Normal
  • Capacity 1 liter
  • Check 15000 km/ 12 months
  • Code: ETX13C
FX50, S51 (2011-2013)
  • Use: Normal
  • Capacity 1 liter
  • Check 15000 km/ 12 months
  • Code: ETX13C
FX30d, S51 (2010-2013)
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 km/ 12 months
  • Code: ETX13C
FX30d, S51 (2009-2010)
  • Use: Normal
  • Capacity 1 liter
  • Check 15000 km/ 12 months
  • Code: ETX13C
FX37, S51 (2008-2011)
  • Use: Normal
  • Capacity 1 liter
  • Check 15000 km/ 12 months
  • Code: ETX13C
FX50, S51 (2008-2011)
  • Use: Normal
  • Capacity 1 liter
  • Check 15000 km/ 12 months
  • Code: ETX13C

Additional Notes

  • Across all listed INFINITI FX S51 variants, the transfer case fluid capacity is 1 liter. A 1-liter figure is characteristic of a compact transfer case service fill, meaning the unit holds a relatively small volume of fluid compared to larger truck-based transfer cases, which can require several liters.
  • The FX30d S51 produced in 2009-2010 carries a transfer case check interval of 15,000 km or 12 months under normal use conditions, whichever comes first. The 12-month time limit means the interval is bounded by calendar time even when mileage accumulation is low.
  • The FX30d S51 covering the 2010-2013 model years has a longer check interval of 20,000 km or 12 months under normal use conditions. The 5,000 km increase over the earlier FX30d specification represents the only interval difference among all the listed configurations.
  • The FX37 S51 spanning 2008-2011 and the FX37 S51 spanning 2011-2013 share identical transfer case specifications: a 1-liter capacity and a 15,000 km or 12-month check interval under normal use conditions. The overlap at the 2011 model year reflects a mid-generation revision point that produced no change in transfer case service requirements.
  • The FX50 S51, available across 2008-2011 and 2011-2013, also carries a 1-liter capacity and a 15,000 km or 12-month check interval under normal use conditions for both sub-ranges. The V8-powered FX50 shares the same transfer case service schedule as the V6-powered FX37 across all listed years.
  • All six rows are designated for normal use conditions. In automotive service terminology, normal use typically excludes sustained towing, off-road driving, or extreme temperature operation, which would generally trigger more frequent service intervals.

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