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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.
2008 Hummer H2Coolant Type & Capacity
OEM spec from the factory service manual for the 4D Utility Pickup variant.
Quick Answer
Coolant Type
50/50 mixture of DEX-COOL and drinkable water
Capacity
16.70 QTS.
15.8 L
Variant
4D Utility Pickup
This vehicle's factory manual
2008 Hummer H2: 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 2008 Hummer H2 take?
- The 2008 Hummer H2 requires 50/50 mixture of DEX-COOL and drinkable water. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the 4D Utility Pickup configuration.
- How much coolant does a 2008 Hummer H2 hold?
- The 2008 Hummer H2 cooling system capacity is 16.70 QTS. (15.8 L).
- Can I use universal coolant in my 2008 Hummer H2?
- It is strongly recommended to use coolant that meets the 50/50 mixture of DEX-COOL and drinkable 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 2008 Hummer H2?
- 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.