Quote:
Originally Posted by dstankov
Dan,
The tank should hold around 5 gallons, you should have a low DEF light on the instrument cluster and you should get around 4500 to 5000 miles on a tank of DEF. Usage depends on how hard you work the vehicle and how much idling time you have.
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Yes, the DEF capacity on my 2014 35 SK is 6 gallons. You will get a dash display warning when you have 500 miles of DEF remaining and yes I get about 1,000 miles per gallon of DEF.