Quote:
Originally Posted by IdahoPoes
Hello Thor Owners!
I have a 2016 Thor Four Winds 33SW Super C motorhome on the Ford F-550 chassis. I have not been able to locate the DEF level indication system, if there is one. I have also been very frustrated when trying to fill the DEF tank at the truck stops.
Any help would be greatly appreciated.
Thank you,
Marshall Poe
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Well, the DEF tank fill issue was solved by ordering the 21GU Mis-Filling Prevention Device (MFPD) (see picture). It contains the magnets necessary to allow you to fill the DEF tank at the DEF pump at any truck stop.