[wolfox]

Drygas... dump a bottle into the tank on a warmer day. If you can get it to start, keep it running for at least half an hour to give the drying agent time to emulsify the water in the tank. Also, in cold weather, never let the tank drop lower than 1/4 down from full. I top up every day in winter, even if it's just 2 or 3 bucks. Air collects moisture, and when it gets cold out, the moisture will condense and settle in the bottom of your tank. Get enough water, and you have a fuel starvation problem.

Try the dry gas and *by gods* keep safety in mind when playing with fuel or starting fluids in the intakes of these trucks.

EDIT: Of note - try to limit the use of drying agents. I hear, but do not have proof that they sometimes contain a gas-line anti-freeze in addition to alcohol. This may cause problems...

Alcohol is the active agent here and is *miscable* with water, meaning it bonds TO the water, making it disperse and stay suspended in the fuel.

Over-use of drying agents with anti-freeze *may* plug catalysts and foul O2 sensors. Try to use an O2 and catalyst safe formulation - *Read* the label to be sure. Use just enough to get the truck running again and keep it topped off in winter. You should be golden!