DEF tank size
We have a new 2013 Fleetwood Expedition. I thought the DEF tank was suppose to be 5 gallons. It read at the dash and the tank gauge half full. I added 2.5 gallons and it only came up to 3/4 full. ...
Forum Discussion
Freightliner XCS is 13 gallons. I would think most are about the same. Can you not see it? I can see the entire tank in mine....and it looks to be about 13 gallons.
