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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.
2018 Chevrolet VoltCoolant Type & Capacity
OEM spec from the factory service manual for the LT variant.
Quick Answer
Coolant Type
50/50 mixture of DEX-COOL and deionized water.
Capacity
7.40 QTS.
7 L
Variant
LT
Source: Factory service manual — 2018 Chevrolet Volt LT. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of coolant does a 2018 Chevrolet Volt take?
- The 2018 Chevrolet Volt requires 50/50 mixture of DEX-COOL and deionized water.. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the LT configuration.
- How much coolant does a 2018 Chevrolet Volt hold?
- The 2018 Chevrolet Volt cooling system capacity is 7.40 QTS. (7 L).
- Can I use universal coolant in my 2018 Chevrolet Volt?
- It is strongly recommended to use coolant that meets the 50/50 mixture of DEX-COOL and deionized water. 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 2018 Chevrolet Volt?
- 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.