Lexus GS430 - Spark Plugs

ENGINE
537
SPARK PLUGS
62R031c
GS430
Your engine is fitted with iridium−tipped spark plugs.
NOTICE
Use only iridium−tipped spark plugs. Do not adjust
gaps for engine performance or smooth drivability.
G62009a
GS300
Your engine is fitted with the designated iridium−tipped
spark plugs.
NOTICE
Use the designated iridium−tipped spark plugs only. Do
not adjust gaps for engine performance or smooth
drivability.