Hyundai Genesis, BH (USA)

Differential fluid capacity & service interval

Hyundai Genesis, BH (USA) differential fluid capacity is 1,4 liters. Service intervals include checks at 37500 miles or 30 months and changes at 80000 miles. The data covers 10 configurations.

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

TypeSpecifications
  • Genesis 3.8 GDI V6 (2012-2014)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 37500 miles/ 30 months
  • Genesis 3.8 GDI V6 (2012-2014)
  • Rear
  • Use: Severe
  • Capacity 1,4 liter
  • Change 80000 miles
  • Genesis 4.6 MPI V8 (2012-2014)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 37500 miles/ 30 months
  • Genesis 4.6 MPI V8 (2012-2014)
  • Rear
  • Use: Severe
  • Capacity 1,4 liter
  • Change 80000 miles
  • Genesis 5.0 GDI V8 (2012-2014)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 37500 miles/ 30 months
  • Genesis 5.0 GDI V8 (2012-2014)
  • Rear
  • Use: Severe
  • Capacity 1,4 liter
  • Change 80000 miles
  • Genesis 3.8 MPI V6 (2009-2012)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 37500 miles/ 30 months
  • Genesis 3.8 MPI V6 (2009-2012)
  • Rear
  • Use: Severe
  • Capacity 1,4 liter
  • Change 80000 miles
  • Genesis 4.6 MPI V8 (2009-2012)
  • Rear
  • Use: Normal
  • Capacity 1,4 liter
  • Check 37500 miles/ 30 months
  • Genesis 4.6 MPI V8 (2009-2012)
  • Rear
  • Use: Severe
  • Capacity 1,4 liter
  • Change 80000 miles

Additional Notes

  • The rear differential fluid capacity across all listed Hyundai Genesis BH configurations — the 3.8 GDI V6, 3.8 MPI V6, 4.6 MPI V8, and 5.0 GDI V8 — is uniformly 1.4 liters, indicating a service fill volume rather than a full overhaul or housing replacement quantity.
  • A 1.4-liter service fill is a relatively modest volume, consistent with a compact rear differential unit where fluid is drained and refilled without disassembly of the differential housing itself.
  • Under normal use conditions, the specified maintenance action for the rear differential is a fluid check at 37,500 miles or 30 months, whichever comes first, rather than a full fluid change.
  • The 30-month time component of the normal-use check interval means time elapsed can trigger the service before the mileage threshold is reached, particularly relevant for lower-mileage vehicles.
  • Under severe use conditions, the specification calls for a fluid change at 80,000 miles across all listed engine variants, replacing the check-only approach applied under normal conditions.
  • The 3.8 MPI V6 covers model years 2009-2012, while the 3.8 GDI V6 covers 2012-2014, reflecting a transition between port injection and direct injection technology within the same displacement class, yet both share identical rear differential fluid capacity and service intervals.
  • The 4.6 MPI V8 spans two separate year groupings in the specifications — 2009-2012 and 2012-2014 — each listed as a distinct configuration, both carrying the same 1.4-liter capacity and identical normal and severe service intervals.
  • The 5.0 GDI V8, available for 2012-2014, carries the same rear differential fluid capacity and service schedule as the smaller-displacement V6 and V8 variants, indicating no capacity or interval differentiation based on engine output in the rear differential specifications.

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