Lexus RX300 2003 Owner's Manual page 301

– COOLING SYSTEM
Capacity
Coolant type
NOTE:
"Toyota Genuine Long Life Coolant" is filled in your Lexus vehicle. In order to avoid technical problems, we strongly recommend
using "Toyota Genuine Long Life Coolant" or equivalent. Please contact your Lexus dealer for further details.
– IGNITION SYSTEM
Spark plug – Make DENSO
NGK
– Gap
– ELECTRICAL SYSTEM
Battery Open voltage at 20_C (68_F):
Charging rates
9.0 L (9.5 qt., 7.9 lmp.qt.)
"Toyota Genuine Long Life Coolant" or equivalent
With ethylene–glycol type coolant for a proper corrosion protection of
aluminum components
Do not use alcohol type antifreeze or plain water alone.
SK20R11
IFR6A11
1.1 mm (0.043 in.)
12.7V Fully charged
12.3V Half charged
11.9V Discharged
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5A max.