Lexus 2007 GS430 Quick Manual page 574

6-1. Specifications
Cooling system
Capacity
Coolant type
Ignition system
Spark plug
Make DENSO
NGK
Gap
NOTICE
Iridium-tipped spark plugs
n
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.
502
GS430
10.7 qt.
(10.1 L, 8. 9 lmp.qt.)
Use either of the following:
• "Toyota Super Long Life Coolant"
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
GS430
SK20R11
IFR6A11
0.043 in. (1.1 mm)
I n f o r ma t i o n P r o v i d e d b y :
GS350
9.6 qt.
(9.1 L, 8.0 lmp.qt.)
GS350
FK20HBR11
ILFR6D11T