DEF Usage - Diesel Truck Forum -
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post #1 of 2 (permalink) Old 09-16-2014, 04:16 AM Thread Starter
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DEF Usage

Who has been keeping track of their DEF usage?

I have 28,225 miles on my truck in 1 years time. Since I started tracking the def usage I have used 10 gallons of def over the last 15,289 miles = 1,528.9 mpg of def.
Average mpg of diesel for those same miles is 16.91 mpg of diesel. That includes towing miles thfough the mountains. So it ends up being 1 gallon of def for 90.4 gallons of diesel or 1.106%

Even non-cummins owners can chime in. Heavy truckers, the rate of def to diesel gallons would be interesting.

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post #2 of 2 (permalink) Old 09-20-2014, 04:29 PM
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0 Gal of DEF to the 21K on my rig. :

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