Hyundai Elantra, CN7 (USA)

Automatic transmission fluid capacity & service interval

Hyundai Elantra, CN7 (USA) automatic transmission fluid capacity ranges from 1,6 to 3,4 liters. Service intervals include checks at 24000 or 40000 miles or 48 months, and changes at 40000, 56000, or 80000 miles. The data covers 5 configurations.

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

TypeSpecifications
Elantra N 2.0 T-GDI (2022- )
  • Use: Normal
  • Capacity 3,3-3,4 liter
  • Check 24000 miles/ 48 months
  • Code: D8LF1/D8F48W 8/1
Elantra N 2.0 T-GDI (2022- )
  • Use: Severe
  • Capacity 3,3-3,4 liter
  • Check 24000 miles/ 48 months
  • Change 56000 miles
  • Code: D8LF1/D8F48W 8/1
Elantra 1.6 GDI Hybrid (2020- )
  • Use: Normal
  • Capacity 1,6-1,7 liter
  • Check 40000 miles/ 48 months
  • Code: D6KF1 6/1
Elantra 1.6 GDI Hybrid (2020- )
  • Use: Severe
  • Capacity 1,6-1,7 liter
  • Check 40000 miles/ 48 months
  • Change 80000 miles
  • Code: D6KF1 6/1
Elantra 1.6 T-GDI (2020- )
  • Use: Normal
  • Capacity 1,6-1,7 liter
  • Change 40000 miles/ 48 months
  • Code: D7UF1-2 7/1

Additional Notes

  • The Hyundai Elantra CN7 (USA) automatic transmission fluid specifications cover semi-automatic transaxle units across three engine configurations, each carrying distinct capacity and interval figures.
  • The 1.6 GDI Hybrid and 1.6 T-GDI semi-automatic transaxles share a fluid capacity range of 1.6-1.7 liters, which is consistent with a service fill rather than a full overhaul quantity, as partial drain-and-fill procedures typically recover only a fraction of total system volume.
  • The Elantra N 2.0 T-GDI semi-automatic transaxle carries a notably larger capacity range of 3.3-3.4 liters, roughly double that of the 1.6-liter engine variants, reflecting the greater fluid volume associated with the higher-output drivetrain.
  • For the 1.6 GDI Hybrid under normal use conditions, the specification calls for a fluid check at 40,000 miles or 48 months, with no change interval listed for that condition.
  • Under severe use conditions, the 1.6 GDI Hybrid retains the same 40,000-mile or 48-month check interval but adds a fluid change requirement at 80,000 miles.
  • The 1.6 T-GDI under normal use conditions specifies a fluid change at 40,000 miles or 48 months, a more demanding schedule than the check-only requirement assigned to the 1.6 GDI Hybrid under the same use condition.
  • The Elantra N 2.0 T-GDI under normal use conditions specifies a fluid check at 24,000 miles or 48 months, a shorter mileage interval than either of the 1.6-liter engine variants despite sharing the same 48-month time threshold.
  • Under severe use conditions, the Elantra N 2.0 T-GDI adds a fluid change at 56,000 miles to the 24,000-mile or 48-month check interval, placing the change interval between the 80,000-mile severe figure of the 1.6 GDI Hybrid and the shorter mileage-based schedules of the other configurations.

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