Hello,
I have a 1993 Legacy and whenever the temperature is 10 degrees or below I cannot start the car. I have run sea-foam through the gas tank and about 10 bottles of iso-heat and I have almost ruled out water being stuck in the line. Funny thing is though, when I put a heater on the top of the engine and wrap the front of the car with a tarp, after it warms up it will start, so I know the problem is somewhere in the engine bay, not near the gas tank. Any suggestions? Fuel filter? ( I've been told that's in the gas tank so I don't think thats the problem.) Is there still possibly some water stuck in the line that has to be evacuated some other way than using additives?