Toyota Lexusc Owner's Handbook Manual page 651

ENGINE
— COOLING SYSTEM
Capacity
With transmission oil cooler
Without transmission oil cooler
Coolant type
NOTE:
"Toyota Super Long Life Coolant" is filled in your Lexus vehicle at factory fill. In order to avoid technical problems, only use "Toyota
Super Long Life Coolant" or 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. Please contact your Lexus dealer for further details.
— IGNITION SYSTEM
Spark plug — Make
— Gap
— ELECTRICAL SYSTEM
Battery Open voltage at 20_C (68_F):
Charging rates
632
9.6 L (10.1 qt., 8.4 lmp.qt.)
9.4 L (9.9 qt., 8.3 lmp.qt.)
"Toyota Super Long Life Coolant" or 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.
DENSO SK20R11
NGK IFR6A11
1.1 mm (0.043 in.)
12.6 — 12.8 V
12.2 — 12.4 V
11.8 — 12.0 V
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5A max.
Fully charged
Half charged
Discharged