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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.
1991 Mazda Mx-5Coolant Type & Capacity
OEM spec from the factory service manual for the Automatic variant.
Quick Answer
Coolant Type
Ethylene Glycol Antifreeze Coolant
Capacity
6.30 QTS.
5.96 L
Variant
Automatic
Note: Above 3Deg.F (-16Deg.C) use: 35/65 mixture of antifreeze and water, above -15Deg. F (26Deg.C) use: 45/55 mixture of antifreeze and water, above -40Deg.F (40Deg.C) use: 55/45 mixture of antifreeze and water.
This vehicle's factory manual
1991 Mazda Mx-5: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Other specs:All specs
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Frequently Asked Questions
- What type of coolant does a 1991 Mazda Mx-5 take?
- The 1991 Mazda Mx-5 requires Ethylene Glycol Antifreeze Coolant. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Automatic configuration.
- How much coolant does a 1991 Mazda Mx-5 hold?
- The 1991 Mazda Mx-5 cooling system capacity is 6.30 QTS. (5.96 L).
- Can I use universal coolant in my 1991 Mazda Mx-5?
- It is strongly recommended to use coolant that meets the Ethylene Glycol Antifreeze 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 1991 Mazda Mx-5?
- 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.