Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Mazda CX-30Coolant Type & Capacity
OEM spec from the factory service manual for the Preferred, 2.5L Eng VIN L, AWD variant.
Quick Answer
Coolant Type
See manual
Capacity
6.90 QTS.
6.52 L
Variant
Preferred, 2.5L Eng VIN L, AWD
Note: Check the vehicle identification number on the vehicle identify cation number plate.
Use FL22 type coolant in vehicles with the inscription "FL22" on the radiator cap itself or the surrounding area. For vehicles without "FL22" inscription use a mixture of demineralized water and ethylene-glycol-based coolant. Do not use solution that contains more than 60% antifreeze. Above -16Deg. C {3.2Deg. F} 65% water/35% coolant. Above -26Deg.C {-15Deg.F} 55% water/45% coolant. Above -40 Deg. C {-40Deg.F} 45% water/55% coolant.
Source: Factory service manual — 2021 Mazda CX-30 Preferred, 2.5L Eng VIN L, AWD. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of coolant does a 2021 Mazda CX-30 take?
- The 2021 Mazda CX-30 uses an OEM-specified coolant. Refer to the factory service manual for the exact type, as it varies by engine variant.
- How much coolant does a 2021 Mazda CX-30 hold?
- The 2021 Mazda CX-30 cooling system capacity is 6.90 QTS. (6.52 L).
- Can I use universal coolant in my 2021 Mazda CX-30?
- Always use coolant that meets the OEM specification for your engine. Universal coolants may not provide adequate corrosion protection.
- What happens if I use the wrong coolant in my 2021 Mazda CX-30?
- 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.