Originally Posted by I-RV
I keep a 2 1/2 gallon DEF in the most aft passenger side compartment. Each time that I get diesel, I fill it. Then when I get to my campground, I fill the DEF at my leisure. The container method also helps getting around the DEF tank being on the wrong side. Works for me.
But how do you know when it's full ???
My 2015 coachman Prism 2150LE has no gauge and my DEF tank and fill tubes are opaque. I don't want to run the risk of a 'blind' top-up and have the fluid come screaming up the fill tube then splashing the corrosive fluid all over the engine compartment.
Some say not to worry and just add fluid when low/empty warnings happen. Sure. Risking limited engine starts, 5 MPH maximum speed or even shut-down while giving unreliable and hard to access indication of DEF level is just plain stupid. Shame on you MBenz
I'm considering drilling a hole in my DEF tank and using some kind of 'dip-stick' to check the DEF level. Any ideas?