Cooling System - Toyota Mirai 2017 Owner's Manual

Cooling system

Fuel cell
*
stack
Capacity
Inverter
Fuel cell
stack
Coolant
type
Inverter
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Toyota dealer.
NOTICE
The fuel cell stack coolant is exclusive for
fuel cell stack usage. Damage may occur
when water or any other type of coolant
is used, so never use any other fluid.
If the fuel cell stack coolant is low, imme-
diately contact your Toyota dealer.
20.7 qt. (19.6 L, 17.2 Imp.qt.)
5.0 qt. (4.7 L, 4.1 Imp.qt.)
"Toyota Genuine FC Stack Coolant"
• In order to safely cool the fuel cell stack,
which is at high voltages, the fuel cell stack
coolant is an exclusive high insulation prod-
uct.
• Never use water or other kinds of coolants
as they will cause damage.
• Coolant changes are unnecessary.
• Do not reuse coolant that has been removed
from the radiator.
• Coolant is colorless.
• Consult your Toyota dealer about replenish-
ing or changing the fuel cell stack coolant.
Use either of the following:
• "Toyota Super Long Life Coolant"
• A 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.
9-1. Specifications
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9