Lexus GS, S190 (EU)

Coolant capacity & service interval

Lexus GS, S190 (EU) models utilize coolant with capacities ranging from 2,8 to 11 liters. Service intervals include checks at 30000 km and changes at 90000 km or 150000 km. The data covers 14 configurations.

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

TypeSpecifications
GS 460 (2008-2010)
  • Use: Normal
  • Capacity 10,8 liter
  • Check 30000 km
  • Change 90000 km
GS 460 (2008-2010)
  • Use: First change only
  • Capacity 10,8 liter
  • Check 30000 km
  • Change 150000 km
GS 300 (2007-2010)
  • Use: Normal
  • Capacity 9,1 liter
  • Check 30000 km
  • Change 90000 km
GS 300 (2007-2010)
  • Use: First change only
  • Capacity 9,1 liter
  • Check 30000 km
  • Change 150000 km
GS 430 (2007-2007)
  • Use: Normal
  • Capacity 11 liter
  • Check 30000 km
  • Change 90000 km
GS 430 (2007-2007)
  • Use: First change only
  • Capacity 11 liter
  • Check 30000 km
  • Change 150000 km
GS 450h (2006-2012)
  • Use: Normal
  • Capacity 9,3 liter
  • Check 30000 km
  • Change 90000 km
GS 450h (2006-2012)
  • Use: First change only
  • Capacity 9,3 liter
  • Check 30000 km
  • Change 150000 km
  • GS 450h (2006-2012)
  • Inverter
  • Use: Normal
  • Capacity 2,9 liter (L.H.D.)
  • Capacity 2,8 liter (R.H.D.)
  • Check 30000 km
  • Change 90000 km
  • GS 450h (2006-2012)
  • Inverter
  • Use: First change only
  • Capacity 2,9 liter (L.H.D.)
  • Capacity 2,8 liter (R.H.D.)
  • Check 30000 km
  • Change 150000 km
GS 300 (2005-2007)
  • Use: Normal
  • Capacity 9,1 liter
  • Check 30000 km
  • Change 90000 km
GS 300 (2005-2007)
  • Use: First change only
  • Capacity 9,1 liter
  • Check 30000 km
  • Change 150000 km
GS 430 (2005-2007)
  • Use: Normal
  • Capacity 11 liter
  • Check 30000 km
  • Change 90000 km
GS 430 (2005-2007)
  • Use: First change only
  • Capacity 11 liter
  • Check 30000 km
  • Change 150000 km

Additional Notes

  • Across the Lexus GS S190 (EU) range, cooling system capacities vary by engine displacement. The GS 300 holds 9.1 liters, the GS 450h holds 9.3 liters for the main cooling circuit, the GS 460 holds 10.8 liters, and the GS 430 holds 11 liters. These figures represent the total system fill volume, which includes the radiator, engine block passages, heater core, and expansion tank.
  • The GS 450h carries a separate inverter cooling circuit in addition to the main engine cooling system. The inverter circuit holds 2.9 liters in left-hand-drive configurations and 2.8 liters in right-hand-drive configurations, reflecting a minor routing difference between the two drivetrain layouts.
  • All variants share a common coolant check interval of 30,000 km regardless of engine type or use condition, indicating a uniform inspection schedule across the entire S190 EU lineup covered by these specifications.
  • Under normal use conditions, the coolant change interval for all variants is 90,000 km. Under the first change only condition, the initial change is extended to 150,000 km. The first change only designation applies to the factory-fill coolant, which is formulated to last longer before the first service, after which the 90,000 km normal interval governs subsequent changes.
  • The GS 300 covered two production periods in these specifications, 2005-2007 and 2007-2010, both sharing an identical 9.1-liter capacity and the same check and change intervals across both use conditions. The overlap at 2007 reflects a mid-year or revised production boundary rather than a specification change.
  • The GS 430 specifications list a 2007-2007 entry alongside the earlier 2005-2007 range. Both entries carry the same 11-liter capacity and identical service intervals, with the single-year entry likely representing a late or final production variant within that model year.
  • The GS 460, introduced for 2008-2010, has a cooling system capacity of 10.8 liters, which is slightly less than the GS 430's 11 liters despite the GS 460 having a larger 4.6-liter V8 compared to the GS 430's 4.3-liter V8. Capacity differences between engines of similar displacement can result from variations in block design, coolant jacket geometry, and ancillary circuit routing.

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