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DenaliHeavyDuty

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    2011 GMC Sierra HD features unique diesel exhaust fluid refill reminders     1268315940

    2011 GMC Sierra Denali HD – Click above for high-res image gallery
    Say it with us: 397 horsepower and 765 pound-feet of torque. That's what General Motors has been able to extract from its new B20-capable 6.6-liter Duramax V8 diesel engine in the GMC Sierra HD and Chevrolet Silverado HD, ...

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