Hyundai Sonata, DN8 (USA)

Coolant capacity & service interval

Hyundai Sonata, DN8 (USA) coolant capacity ranges from 2,1 to 8,4 liters. Service intervals include 30000 miles/24 months, 120000 miles/120 months, and 24000 miles/24 months. The data covers 10 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: Normal
  • Capacity 8,4 liter
  • Change 24000 miles/ 24 months
Sonata 2.5 T-GDI (2020- )
  • Use: Initial service
  • Capacity 8,4 liter
  • Change 120000 miles/ 120 months
Sonata 1.6 T-GDI (2019-2023)
  • Use: Normal
  • Capacity 7,6 liter
  • Change 30000 miles/ 24 months
Sonata 1.6 T-GDI (2019-2023)
  • Use: First change only
  • Capacity 7,6 liter
  • Change 120000 miles/ 120 months
Sonata 2.0 Hybrid (2019- )
  • Use: Normal
  • Capacity 6,8 liter
  • Change 24000 miles/ 24 months
Sonata 2.0 Hybrid (2019- )
  • Use: First change only
  • Capacity 6,8 liter
  • Change 120000 miles/ 120 months
  • Sonata 2.0 Hybrid (2019- )
  • Inverter
  • Use: Normal
  • Capacity 2,1 liter
  • Change 24000 miles/ 24 months
  • Sonata 2.0 Hybrid (2019- )
  • Inverter
  • Use: First change only
  • Capacity 2,1 liter
  • Change 120000 miles/ 120 months
Sonata 2.5 GDI (2019- )
  • Use: Normal
  • Capacity 8,2 liter
  • Change 30000 miles/ 24 months
Sonata 2.5 GDI (2019- )
  • Use: First change only
  • Capacity 8,2 liter
  • Change 120000 miles/ 120 months

Additional Notes

  • The Hyundai Sonata DN8 (USA) cooling system capacities range from 6.8 liters on the 2.0 Hybrid up to 8.4 liters on the 2.5 T-GDI, reflecting differences in engine displacement and cooling circuit size across the lineup.
  • The 2.0 Hybrid carries two separate cooling circuits: a 6.8-liter main cooling system and a 2.1-liter inverter cooling system, each with its own service schedule.
  • Both the main cooling system and the inverter cooling system on the 2.0 Hybrid share the same normal-use interval of 24,000 miles or 24 months, meaning both circuits align on routine service timing.
  • The 1.6 T-GDI and 2.5 GDI engines specify a normal-use coolant change interval of 30,000 miles or 24 months, while the 2.0 Hybrid and 2.5 T-GDI are set at a shorter 24,000-mile or 24-month interval under normal use.
  • Across all engine variants, the first-change interval is specified at 120,000 miles or 120 months, which represents a significantly extended initial service period before the recurring normal-use schedule takes effect.
  • The 2.5 GDI holds 8.2 liters of coolant, placing its capacity between the 1.6 T-GDI at 7.6 liters and the 2.5 T-GDI at 8.4 liters, with the turbocharged version of the 2.5-liter engine requiring the largest cooling system fill of any variant in the lineup.
  • The 2.5 T-GDI, introduced from 2020, labels its extended initial service entry as "initial service" rather than "first change only" as used on the other variants, though both refer to the same 120,000-mile or 120-month interval.

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