Hyundai Sonata, DN8 (USA)

Automatic transmission fluid capacity & service interval

Hyundai Sonata, DN8 (USA) automatic transmission fluid capacity ranges from 3,3 to 6,5 liters. Service intervals include checks at 24000 miles or 48 months and changes at 56000, 60000, or 72000 miles. The data covers 5 configurations.

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

TypeSpecifications
Sonata 2.5 T-GDI (2020- )
  • Use: Severe
  • Capacity 3,3-3,4 liter
  • Change 56000 miles
  • Code: D8LF1/D8F48W 8/1
Sonata 1.6 T-GDI (2019-2023)
  • Use: Normal
  • Capacity 6,5 liter
  • Check 24000 miles/ 48 months
  • Code: 8/1
Sonata 1.6 T-GDI (2019-2023)
  • Use: Severe
  • Capacity 6,5 liter
  • Check 24000 miles/ 48 months
  • Change 72000 miles
  • Code: 8/1
Sonata 2.0 Hybrid (2019- )
  • Use: Severe
  • Capacity 6 liter
  • Change 60000 miles
  • Code: A6MF2H-1 6/1
Sonata 2.5 GDI (2019- )
  • Use: Severe
  • Capacity 6,5 liter
  • Change 60000 miles
  • Code: 8/1

Additional Notes

  • The Hyundai Sonata DN8 (USA) automatic transaxle fluid capacity for the 1.6 T-GDI is 6.5 liters, which represents a full service fill volume for the unit.
  • Under normal use conditions, the 1.6 T-GDI automatic transaxle requires only a fluid level check at 24,000 miles or 48 months, with no fluid change interval specified for that condition.
  • Under severe use conditions, the 1.6 T-GDI automatic transaxle retains the same 24,000-mile or 48-month check interval but adds a fluid change at 72,000 miles.
  • The 2.5 GDI automatic transaxle shares the 6.5-liter capacity of the 1.6 T-GDI, though its severe-use fluid change interval is set at 60,000 miles rather than 72,000 miles.
  • The Sonata 2.0 Hybrid automatic transaxle carries a 6-liter fluid capacity under severe use conditions, which is 0.5 liters less than the 1.6 T-GDI and 2.5 GDI units, reflecting a physically smaller or differently configured transaxle assembly.
  • The severe-use fluid change interval for the 2.0 Hybrid automatic transaxle is 60,000 miles, identical to the 2.5 GDI interval despite the difference in fluid capacity between the two.
  • The Sonata 2.5 T-GDI, available from 2020, uses a semi-automatic transaxle rather than a conventional automatic unit, which is a structural distinction from all other configurations in the DN8 lineup covered here.
  • The 2.5 T-GDI semi-automatic transaxle has a notably lower fluid capacity of 3.3 to 3.4 liters, a range that likely reflects a service fill rather than a dry fill, and is substantially smaller than the 6 to 6.5-liter capacities seen across the other DN8 transaxles.
  • The severe-use fluid change interval for the 2.5 T-GDI semi-automatic transaxle is 56,000 miles, the shortest change interval among all DN8 automatic and semi-automatic transaxle configurations listed.

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