6.7 Problems Forum (2011-2016)
Have a 2013 F-250 with an interesting DEF issue. When the level indicates under 1/2 full in message center, I have always topped it off with the Motorcraft Jug and Nozzle, so I know it is full. However, it may take the system up to 20 miles and/or several start and stop cycles to show that the...