Cooling System; Ignition System - Lexus GS 350 Owner's Manual

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8-1. Specifications

Cooling system

Capacity
Coolant type

Ignition system

Spark plug
Make
Gap
NOTICE
Iridium-tipped spark plugs
■
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
10.3 qt. (9.7 L, 8.5 Imp.qt.)
Use either of the following:
• "Toyota Super Long Life Coolant"
• Similar high-quality ethylene glycol-based non-
silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid tech-
nology
Do not use plain water alone.
DENSO FK20HBR11
0.043 in. (1.1 mm)