5
storing Def
DEF shelf life is typically at least one year, depending on the storage
temperature. It is best stored out of direct sunlight between 12ºF and 86ºF.
Small DEF spills can be cleaned up by absorbing it with dry earth, sand or other
non-combustible material and scooping it into a container for disposal.
While DEF is not listed as a hazardous waste by the federal government,
please use proper disposal methods. Do not empty into drains; dispose of
this material and its container in accordance with all applicable local and
national regulations.
refilling your Def tank
DEF is stored in a 5.3-gallon tank located under
the passenger side of the cab. The DEF tank
fill point is conveniently located under the
hood, along with other fluids that require
periodic maintenance. It‘s easily identified
with a blue cap.
It is very important not to overfill the DEF
tank. The easiest way to verify the tank is not
overfilled is to wait until the “Exhaust Fluid
Range: 1000 mi” message appears on the DIC. At
this point add approximately 3.5 gallons of DEF.
