Lexus RX 450h 2010 Owner's Manual page 635

6-1. Specifications
Cooling system
Capacity
Gasoline engine
Power control unit
Coolant type
*
: With towing package
Ignition system
Spark plug
Make
Gap
NOTICE
Iridium-tipped spark plugs
■
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
634
12.0 qt. (11.4 L, 10.0 Imp. qt.)
12.3 qt. (11.7 L, 10.3 Imp. qt.)*
2.0 qt. (1. 9 L, 1.7 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 cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
DENSO FK20HR11
0.043 in. (1.1 mm)