My '05 crew cab,short box,4x4,Duramax is a pretty good truck, except for the fact that it gets 10-11 mpg @75 mph.Seems all '05's are having this problem while the '02-'04's are enjoying 18-19 mpg.The worst thing is that after spending over $44,000, Chevrolet admitts they have a problem but have no fix and don't seem to be to worried about fixing the problem.
Chevrolet needs to improve the milage to justify the almost $6000 up charge for the Duramax or refund all of us that bought on reputation of the milage that the older trucks had.
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