In almost 25 years powering General Motors trucks and SUVs, the 6.6-liter Duramax V8 diesel engine has earned a loyal ...
If you own a truck with the 6.6L Duramax diesel, you already know what it costs to feed it. The engine makes 470 horsepower and 975 lb-ft of torque, and it will haul just about anything you can ...
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