Octane for 2008 H2 with the 6.2 L - Hummer Forums by Elcova

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Octane for 2008 H2 with the 6.2 L

12-03-2011, 02:12 AM

Wibs

Hummer Veteran

Join Date: Dec 2011

Posts: 30

Octane for 2008 H2 with the 6.2 L

Hi, can you damage the engine if you use 87 or 89 octane with the 6.2 L engine, because I heard that premium fuel is recommended.
Thanks.

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