2021 Toyota MiraiCoolant Type & Capacity

OEM spec from the factory service manual for the Limited variant.

Quick Answer

Coolant Type

TOYOTA Genuine FC Stack Coolant

Capacity

17.30 QTS.

16.37 L

Variant

Limited

Note: DO NOT use water or other kinds of coolant as they will cause damage. The capacity is a reference quantity.

This vehicle's factory manual

The coolant spec is above. This opens the fluids section of the 2021 Toyota Mirai Limited factory book.

Open the 2021 Toyota manual

Related for Your 2021 Toyota Mirai

Frequently Asked Questions

What type of coolant does a 2021 Toyota Mirai take?
The 2021 Toyota Mirai requires TOYOTA Genuine FC Stack Coolant. The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the Limited configuration.
How much coolant does a 2021 Toyota Mirai hold?
The 2021 Toyota Mirai cooling system capacity is 17.30 QTS. (16.37 L).
Can I use universal coolant in my 2021 Toyota Mirai?
It is strongly recommended to use coolant that meets the TOYOTA Genuine FC Stack Coolant specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
What happens if I use the wrong coolant in my 2021 Toyota Mirai?
Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.