That makes sense, but I did the same thing when I used the ITP in-tank/pre-pump filter kit.
Still, though, that only works while you're running because it only addresses the benefit of circulating agitation within the tank as a whole instead of only at the pump suction foot. Once you're truck is down for the night, you still should use something else to maintain fuel fluidity so that it will flow on startup in the morning.
I've never had a no-run gel situation until the engine was put under load. The fuel will still flow, but the filters will separate the wax until it plugs the filter or screens, or the lines to the filters or screens. If you can get warm enough fuel flowing to redissolve the wax it prevents gelling.
Just curious does your #1 sample have any soy in it? I was thinking SD had 2% but I am not sure.
I should have added,
there are many stations in SD that do include 2% soy biodiesel, there is one here in Sioux Falls but I did not get the fuel from there. Now that I think of it I should have gotten some fuel from there also!
This test is never going to end is it.............
at 6 a.m. the OAT was -7 F. #1 Diesel remained clear. Both 50/50 mixes were cloudy but the untreated 50/50 mix was cloudier than the 50/50 mix treated with the anti-gelling additive. There was some wax drop out in the untreateded 50/50 mix, very little compared to the straight #2 pics posted previously.
at 8 a.m. OAT was -5 F. Same observations as 6 a.m.
Some wax drop out on the bottom of the untreated 50/50 mix container. A thin layer, hard to see in this photo.
....This test is never going to end is it.............
Rich... that's just the way it goes when you ride the "continual improvement" train.
Thanks for following up on this and continuing the work. If I can get a chance, I'll compile the entire set of pics and discussion points into a single PDF file for you for easier reference and sharing with others. Might be a week or so, though, before I can get it all pulled together.