What's your mpg on a 2500 4x4 2011-2012 duramax 6.6?
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Fuel mileage on 2011-2012 duramax 6.6
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I usually try to go about 67 right at the rpm torque curve, 1600 to 1700 rpm is where that motor does well, Weather makes a difference, best I had on a cool night was 19.3. Of the big three for 2012 duramax is the all around winner for power and fuel mileage. Now I know people are going to say the dodge and ford are rated higher this is true but it's the programming putting the power to the ground that counts. My biggest Chevy complaint is interior and the position of the urea tank.
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