2011 Mazda 6Coolant Type & Capacity

OEM spec from the factory service manual for the i Grand Touring variant.

Quick Answer

Coolant Type

FL22 Type Engine Coolant

Capacity

9.40 QTS.

8.89 L

Variant

i Grand Touring

Note: If the "FL22" mark is shown on or near the cooling system cap, use Mazda Genuine FL22 engine coolant. FL22 type engine coolant is shipped as a diluted solution. Use the solution as is when replacing coolant.
Source: Factory service manual β€” 2011 Mazda 6 i Grand Touring. View full manual section β†’

Frequently Asked Questions

What type of coolant does a 2011 Mazda 6 take?
The 2011 Mazda 6 requires FL22 Type Engine Coolant. The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the i Grand Touring configuration.
How much coolant does a 2011 Mazda 6 hold?
The 2011 Mazda 6 cooling system capacity is 9.40 QTS. (8.89 L).
Can I use universal coolant in my 2011 Mazda 6?
It is strongly recommended to use coolant that meets the FL22 Type Engine 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 2011 Mazda 6?
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.