Which specification does Automatic transmission fluid (ATF) need for the Hummer H1 6.6TD (2005–2006)?

Automatic transmission fluid (ATF) for the Hummer H1 6.6TD (2005–2006): Dexron VI, JASO 1A.

Which specification does Coolant & antifreeze need for the Hummer H1 6.6TD (2005–2006)?

Coolant & antifreeze for the Hummer H1 6.6TD (2005–2006): G12, G12+.

For the Hummer H1 6.6TD (2005–2006), the manufacturer specifies motor oil 15W-40 (API SN).

Fluid	Requirement
Motor oil	15W-40: API SN
Automatic transmission fluid (ATF)	Dexron VI, JASO 1A
Coolant & antifreeze	G12, G12+

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