Re: Octane for 2008 H2 with the 6.2 L
I run Shell V-Power Premium in my 6.0 and my 6.2 Liter. The premium you get better miles per gallon ( you pay a little more per tank, but if your going further on a tank of fuel, it only makes sense )
Not to be rude and no offense in anyway, but if anyone is worried over a few pennies difference at the pump a Hummer is the last vehicle you need to own. While I know those few pennies adds up into dollars, still if thats making a difference in your budget, you should be in a more smaller economy car. I didn't get my H2's for the fuel economy.
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