670
PRIUS_OM_OM47E09U_(U)
8-1. Specifications
*: The coolant capacity is a reference quantity.If replacement is necessary, contact your Toyota dealer.
Cooling system
Capacity*
Gasoline
engine6.6 qt. (6.2 L, 5.5 Imp.qt.)
Power 
control unit1.5 qt. (1.4 L, 1.2 Imp.qt.)
Coolant type
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.
Ignition system (spark plug)
MakeDENSO FC16HR-CY9
Gap0.035 in. (0.9 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (12-volt battery)
Open voltage at 68F (20 C):
12.0 V or higher 
If  the  voltage  is  lower  than  the  standard
value,  charge  the  battery.  (After  charging
the  battery,  turn  on  the  high  beam  head-
lights  for  30  seconds  with  the  power  switch
off, and turn the headlights off.)
Charging rates5 A max.