Dodge Cummins Diesel Forum - View Single Post - MPG vs new trucks
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post #1 of (permalink) Old 10-08-2019, 02:32 PM Thread Starter
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MPG vs new trucks

Just wondering why the new trucks with more power and more emissions seem to be more fuel efficient than the good ole 5.9?

I have a 2006 with slightly over sized tires (about 32" BFG AT KO's), drive the speed limt and the best I have ever gotten is about 18/19mpg on the highway.


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