So here it is winter time. I need to run B50 -B80 so the fuel will not gel. I was thinking it would be really nice to be able to run B90 or better yet B100. So I am trying to see if this is possible without major mods. The one problem that I see is the plastic fuel tank. All the heaters for fuel tanks say not for use on plastic tanks. So has anyone found a heater that will work on our plastic tanks? I also was thinking maybe a fuel filter heater. Has anyone used one? I am looking for any suggestions.