Lexus IS 350C 2012 Manual page 568

6-1. Specifications
Ignition system
Spark plug
Make
Gap
NOTICE
Iridium-tipped spark plugs
■
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.
Electrical system
Battery
Open voltage* at
68F (20C):
Charging rates
568
DENSO FK20HBR11
0.043 in. (1.1 mm)
12.6 
12.2 
11.8 
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
5 A max.
12.8 V Fully charged

 12.4 V Half charged
12.0 V Discharged
