Posted by Paul(In NY) [12.64.114.219] on Tuesday, December 16, 2014 at 21:13:41 :
In Reply to: 4BT mileage update. posted by Sterling [99.98.76.231] on Tuesday, December 16, 2014 at 19:40:21 :
On all my Cummins in the old iron, 1800 R's is the sweet spot for best MPG.
Paul
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