386
6-1. Specifications
Electrical system
Differential
Battery
Specific gravity reading at 
 68F (20C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(Voltage checked 20 minutes after the 
key is removed with all the lights turned 
off)
Charging rates5A max.
Oil capacity
Front0.74 qt. (0.70 L, 0.61 lmp.qt.)
Rear
IS350:
1.42 qt. (1.35 L, 1.19 lmp.qt.)
IS250 (2WD models):
1.20 qt. (1.15 L, 1.01 lmp.qt.)
IS250 (AWD models):
1.10 qt. (1.05 L, 0.92 lmp.qt.)
Oil type and 
viscosity
IS250 (AWD)
Hypoid gear oil API GL-5
Above 0F (-18C): SAE90
Below 0F (-18C): SAE80W 
or SAE80W-90
Others
Toyota Genuine Differential 
Gear Oil LT 75W-85 GL-5, 
Toyota Genuine Differential 
Synthetic Gear Oil or equivalent