Best Diesel Fuel Treatment?

[More Power]

I've been driving GM diesels since 1995. I've gelled up 3 times, all from not using enough fuel treatment during extreme winter cold snaps. I suspect that here in SW MO, we don't have properly winterized fuel since we typically don't have that much extreme cold.

I have an aftermarket fuel filter on my Tahoe, but built my own fuel heater using a 12V heating pad originally meant for RV sewer pipes.

Casey

The factory GM fuel filter assy for the 6.5 includes a heating element that projects upwards into the very center of the fuel filter element. It is effective in keeping the fuel from gelling, assuming the heater portion of the filter assy works as advertised. I'd imagine it could keep even summer #2 from gelling, but there is no fuel heater in the fuel tank. This means that badly gelled fuel could plug the fuel strainer on the pick-up.