Quote:
Originally Posted by simidrm
Typically def consumption is around 2% of the amount of fuel.
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So if you multiply your fuel mileage by 50: you should be pretty close on your DEF mileage.
For my rig: 14x50 equals 700 mpD.
Since I've got a 4.8 gallon tank, and want to keep it at or above 1/2 full: I should re-fill at about
1,680 miles...