I'm without my Fiesta ST (again) as my son's car wouldn't start again this morning in the -10F weather. This is the third time it has happened and that car's got about 3 bottles of water remover (isopropyl alcohol) in it. I'm thinking the fuel filter probably has water and/or slush and ice in it. I bought a new fuel filter but I need to move the car into the garage before I can reasonably think about replacing it. And therefore I need to start it. The last two times this happened I was able to eventually get it going by pointing a space heater under the car for an hour or so. It's so bloody cold out there that I'm not sure it's even worth the effort today. Why isn't this water remover doing it's job? I suspect it's related to the amount of water in the fuel system. It's a 2002 and my son typically waits until the low fuel light comes on to THINK about maybe buying some gas. Right now I've got about 3 gallons of gas warming up in my living room. When it gets up to room temperature ( a balmy 61F) I'm going to add another bottle of water remover to the gas and dump it in the car around 3 PM when it reaches the high for the day, maybe 5F? I'm really sick of this weather and I'm also monitoring a pipe in the basement that burst a few weeks ago. So far it's pretty stable at around 52F and if it does get down to 38F the heat tape thermostat should kick in.