Lexus RX 450h Owner's Manual page 569

Cooling system
Capacity
Coolant type
*
: The coolant capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Ignition system (spark plug)
Make
Gap
NOTICE
Iridium-tipped spark plugs
■
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system (12-volt battery)
Open voltage at 20°C (68°F):
Charging rates
� � � � � � � � � � � � � � � � �
RX450h

Gasoline 9.8 L (10.3 qt., 8.6 Imp. qt.)
engine RX450hL

*
12.2 L (12.9 qt., 10.7 Imp. qt.)
Power con-
1.9 L (2.0 qt., 1.7 Imp. qt.)
trol unit
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 technology
Do not use plain water alone.
8-1. Specifications
DENSO FK20HBR8
0.8 mm (0.03 in.)
12.6 V or higher: Fully charged
12.2  12.4 V: Half charged
12.0 V or lower: Discharged
(Turn the power switch off and turn on the head-
lights for 20 to 30 seconds.)
5 A max.
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