Cougarnewbie
Dec 08, 2020Explorer
Stale DEF
Because of Covid my F-350 6.7 diesel has been garage kept since February. The DEF tank is full. DEF has a shelf life. Should I be concerned enough to consider draining the old DEF? My first diesel. T...
Grit dog wrote:
Guess I gotta ask....How on earth have some of you stayed cooped up and not gone anywhere for d@mn near a year now?