It's not a screw-in cap. It is a blue poly cap that looks like it is just pressed in. I will probably remove it and pour some just to be on the safe side....
But for now...nor more talk of winterinzing....We are about to leave for a long weekend trip to northern michigan, and then we will take it out for our final trip to a nearby Casino RV resort where we always do winterizing in early Nov. And since our first trip of the season is the last weekend in March, we can tell people that we camp 9 months in Michiagn.
It's always sad for us though. When I see the first end display of RV antifreeze in the store, it reminds me when i was younger and saw the first display of school supplies.
Thanks all for the comments.
Cathy & Jeff
2013 Sabre 32RCTS / 2012 Ram2500 Hemi
Nights Camped: 2015-140; 2016-137 YTD; 160 Planned