Quote:
Originally Posted by Big Dave
And I don't believe for a minute an old Dodge with a 12v Cummins will get 40 MPG. I don't believe 27 unless you never drive over 35 MPH.
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I have an old Ford with the 6.9L IDI (a full liter bigger than the 12v) with no overdrive and have gotten 28.5mpg (avg) at 45mph plus a little city driving