Lexus GS 350 Owner's Manual page 620

Cooling system
Capacity
Coolant type
* 1
: For GCC countries
* 2
: Saudi Arabia, Sultanate of Oman, Bahrain, United Arab Emirates, Qatar, Kuwait
Ignition system
Spark plug
Make
Gap
NOTICE
Iridium-tipped spark plugs
■
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
GS350_300_GS F_OM_OM30J17E_(GE)
9.4 L (9.9 qt., 8.3 Imp.qt.)
GS350
9.8 L (10.4 qt., 8.6 Imp.qt.)
Engine coolant

9.0 L (9.5 qt., 7.9 Imp.qt.)
GS300
Intercooler

2.6 L (2.7 qt., 2.3 Imp.qt.)
GS F 11.3 L (11.9 qt., 9.9 Imp.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 coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
* 2
, Jordan, Lebanon, South Africa with towing package
GS350
DENSO
FK20HBR8
0.8 mm (0.031 in.)
8-1. Specifications
* 1
GS300
NGK DENSO
DILFR7K9G FK20HBR-J8
0.9 mm (0.04 in.) 0.8 mm (0.031 in.)
619
GS F
8