Quote:
Originally Posted by danj12
I have a new 2016 Super C, with two gas tanks 48 and 25. Do you know how many gallons the DEF tank holds. I can't find info anywhere. Also, how often do I have to keep it filled, It would be nice to have a gauge. What do you use for a rule of thumb, fill ups to adding DEF.
Thanks Dan
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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.