What year best for Duramax?

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03-14-2009 | 08:35 PM

sqdqo

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What year best for Duramax?

Through the years the Duramax has been offered which year(s) has provided the best fuel economy/power? What effect has the emissions regulations had on fuel economy and power?

03-15-2009 | 07:48 AM

GMCSierraFan

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From: Midwest

05, 06 are the best years. With the new emissions systems the newer ones basically had their ***** cut off.

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