Lexus SC, Z40 (EU)

Coolant capacity & service interval

Lexus SC, Z40 (EU) coolant capacity is 9,9-10,1 liters. Service intervals include 30000 km/ 24 months, 60000 km/ 36 months, 30000 km checks, 90000 km, and 150000 km changes. The data covers 8 configurations.

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

TypeSpecifications
SC 430 (2005-2010)
  • Use: Normal
  • Capacity 9,9-10,1 liter
  • Check 30000 km
  • Change 90000 km
SC 430 (2005-2010)
  • Use: First change only
  • Capacity 9,9-10,1 liter
  • Check 30000 km
  • Change 150000 km
SC 430 (2004-2005)
  • Use: Normal
  • Capacity 9,9-10,1 liter
  • Check 30000 km
  • Change 90000 km
SC 430 (2004-2005)
  • Use: First change only
  • Capacity 9,9-10,1 liter
  • Check 30000 km
  • Change 150000 km
SC 430 (2003-2003)
  • Use: Normal
  • Capacity 9,9-10,1 liter
  • Change 30000 km/ 24 months
SC 430 (2003-2003)
  • Use: First change only
  • Capacity 9,9-10,1 liter
  • Change 60000 km/ 36 months
SC 430 (2001-2002)
  • Use: Normal
  • Capacity 9,9-10,1 liter
  • Change 30000 km/ 24 months
SC 430 (2001-2002)
  • Use: First change only
  • Capacity 9,9-10,1 liter
  • Change 60000 km/ 36 months

Additional Notes

  • The Lexus SC 430 (Z40, EU) cooling system holds between 9.9 and 10.1 liters across all model years covered in the specifications, a capacity range consistent with a V8 engine cooling circuit that includes the radiator, heater core, and associated hoses.
  • For the SC 430 in 2001-2002, the normal-use coolant change interval is set at 30,000 km or 24 months, whichever comes first, reflecting a relatively short service cycle tied to conventional coolant chemistry.
  • The first-change-only interval for the 2001-2002 SC 430 extends to 60,000 km or 36 months, meaning the initial factory fill is rated to last twice the distance of subsequent normal-use changes before the first service is due.
  • The 2003 SC 430 shares identical capacity and interval figures with the 2001-2002 model, with a 30,000 km or 24-month normal change interval and a 60,000 km or 36-month first-change-only interval.
  • Starting with the 2004-2005 SC 430, the service schedule introduces a dedicated check interval at 30,000 km alongside a change interval, a structure not present in the earlier years, where only a change interval was listed.
  • For the 2004-2005 SC 430 under normal use, the coolant change interval increases substantially to 90,000 km, compared to the 30,000 km change interval specified for the 2001-2003 model years.
  • The first-change-only interval for the 2004-2005 SC 430 reaches 150,000 km, which is 2.5 times the normal-use change interval of 90,000 km for the same years, indicating the factory fill is formulated to a higher longevity standard than the replacement fluid.
  • The 2005-2010 SC 430 retains the same interval structure as the 2004-2005 model, with a 30,000 km check, a 90,000 km normal change, and a 150,000 km first-change-only interval, alongside the unchanged 9.9-10.1 liter capacity.

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