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Thread: 2011 duramax?
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Old November 6th, 2011, 10:16 AM   #6
Keep on truckin
Kodiak450r's Avatar
Join Date: 11-14-07
Location: Waterford, MI
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my neighbor has a 2011 3500HD with the duramax, crew cab short bed single wheel. his real world mileage is around 15-16 MPG combined city/hwy. he drives to warren and back twice a week for work but mostly just a grocery getter.
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