Its about 0 degrees here, and maybe a little colder at night. Yesterday I had to change out my fuel filters on my 06. This morning my truck started fine, and I let it warm up for about 10 minutes. Took off for a drive and about 1 mile away I could tell I was headed for problems. Filter gelled up again and my truck quit all togeather. I let it sit, got it started and limped it home. I figure I only have a few gallons of my homebrew bio in the tank, and I filled up the tank with petro before the cold spell hit. I am also running Powerservice (white bottle). Any way, I changed the filter thats on the rail under the drivers seat, and that seems to have solved the problem. My question is this, is that new filter that I put in yesterday trashed now, or may I reuse it for another time after it thaws out. The old filter I changed out yesterday, and the new one I put in yesterday and took out today were both clogged up (gelled). Has anyone ever re-used a clean filter that had gelled?