New owner of a 2016 Navion 24G and was wondering if this RV has a DEF tank and how often it needs to be filled and where the input tube is located on the vehicle? Thanks. Terry
You will get a warning light when DEF needs to be added. Pick up 2.5 gallon DEF at Walmart, Tractor Supply or auto parts store. Filler is under the hood labeled DEF. If you spill any just rinse well with water.