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Old 09-03-2006, 04:34 PM
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drmiles drmiles is offline
Hummer Expert
 
Join Date: Mar 2004
Location: Houston, Texas
Posts: 917
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Default Re: Lower Gas Prices

My gas mileage goes from 10.7 to 10.5 in the city switching from premium to regular. My vehicle is SC and requires higher octane. Can't say that I see a big difference in power. However it seems to start easier on premium when cold.
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