spark plugs Lexus GS430 2006 Scheduled Maintenance Guide / LEXUS 2006 GS430/GS300 FROM JAN. 2006 PROD. OWNER'S MANUAL (OM30786U)

SECTION 6 – 2
519
SERVICE PROCEDURES AND
SPECIFICATIONS
Engine
Specifications (GS430)520
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Specifications (GS300) 523
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Fuel 526
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Fuel pump shut off system 528
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Facts about engine oil consumption 528
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Used engine oil 530
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. . . . .
Checking the engine oil level 530
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Checking the engine coolant level 534
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Checking the radiator and condenser 536
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Spark plugs 537
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ENGINE
537
SPARK PLUGS
62R031c
GS430
Your engine is fitted with iridiumtipped spark plugs.
NOTICE
Use only iridiumtipped spark plugs. Do not adjust
gaps for engine performance or smooth drivability.
G62009a
 GS300
Your engine is fitted with the designated iridiumtipped
spark plugs.
NOTICE
Use the designated iridiumtipped spark plugs only. Do
not adjust gaps for engine performance or smooth
drivability.