Lexus HS (USA / CAN)

Coolant capacity & service interval

Lexus HS (USA / CAN) coolant capacity ranges from 2,9 to 7,3 liters. Service intervals include checks at 8000 km or 15000 miles/18 months and changes at 80000 km, 160000 km, 50000 miles/60 months, 100000 miles/120 months, or 150000 miles/180 months. The data covers 8 configurations.

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

TypeSpecifications
HS 250h (CAN), ANF10 (2009-2012)
  • Use: Normal
  • Capacity 7,3 liter
  • Check 8000 km
  • Change 80000 km
HS 250h (CAN), ANF10 (2009-2012)
  • Use: First change only
  • Capacity 7,3 liter
  • Check 8000 km
  • Change 160000 km
  • HS 250h (CAN), ANF10 (2009-2012)
  • Inverter
  • Use: Normal
  • Capacity 2,9 liter
  • Check 8000 km
  • Change 80000 km
  • HS 250h (CAN), ANF10 (2009-2012)
  • Inverter
  • Use: First change only
  • Capacity 2,9 liter
  • Check 8000 km
  • Change 160000 km
HS 250h (USA), ANF10 (2009-2012)
  • Use: Normal
  • Capacity 7,3 liter
  • Check 15000 miles/ 18 months
  • Change 50000 miles/ 60 months
HS 250h (USA), ANF10 (2009-2012)
  • Use: First change only
  • Capacity 7,3 liter
  • Check 15000 miles/ 18 months
  • Change 100000 miles/ 120 months
  • HS 250h (USA), ANF10 (2009-2012)
  • Inverter
  • Use: Normal
  • Capacity 2,9 liter
  • Check 15000 miles/ 18 months
  • Change 50000 miles/ 60 months
  • HS 250h (USA), ANF10 (2009-2012)
  • Inverter
  • Use: First change only
  • Capacity 2,9 liter
  • Check 15000 miles/ 18 months
  • Change 150000 miles/ 180 months

Additional Notes

  • The Lexus HS 250h carries two separate coolant circuits: a main engine cooling system with a 7.3-liter capacity and a dedicated inverter cooling system with a 2.9-liter capacity, reflecting the hybrid powertrain's need to manage heat from both the combustion engine and the high-voltage power electronics independently.
  • The 2.9-liter inverter cooling system capacity is notably smaller than the 7.3-liter engine cooling system, which is consistent with the more compact thermal loop required to regulate the hybrid inverter assembly rather than a full internal combustion engine.
  • For Canadian-market ANF10 models (2009-2012), both the engine cooling system and the inverter cooling system share the same check interval of 8,000 km regardless of use condition.
  • Under normal use conditions in the Canadian market, both cooling circuits call for a coolant change at 80,000 km, while the first-change-only condition extends that interval to 160,000 km for the engine cooling system and equally to 160,000 km for the inverter cooling system.
  • The "first change only" designation in the Canadian specifications applies a doubled change interval compared to the normal use interval, indicating that the initial factory-fill coolant is formulated or conditioned to last longer before the first service, after which the standard 80,000 km cycle applies.
  • For USA-market ANF10 models (2009-2012), the check interval for both cooling circuits is 15,000 miles or 18 months, and the normal-use change interval is 50,000 miles or 60 months for both the engine and inverter systems.
  • The first-change-only interval for the USA-market engine cooling system is 100,000 miles or 120 months, doubling the normal-use change interval, which mirrors the same proportional extension seen in the Canadian market specifications.
  • The USA-market inverter cooling system under first-change-only conditions carries a change interval of 150,000 miles or 180 months, which is three times the normal-use change interval of 50,000 miles or 60 months, a notably longer extension than what applies to the main engine cooling system under the same condition.
  • Across both market variants, the 7.3-liter engine cooling system capacity is consistent, indicating no regional difference in the physical cooling system volume between USA and Canadian ANF10 configurations for the 2009-2012 model years.