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Thread: 4.5L Duramax
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post #10 of (permalink) Old 06-17-2007, 01:25 PM
Duke
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I thought they were saying a "25% improvement in fuel economy"?

If the average 1/2 ton gasser gets ~12 MPG around town/~18 MPG highway , that would mean the diesel would get ~15 in town/ ~23 highway.
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