Back to not starting...
I'm thinking I've got a high concentration of water in my fuel.
--The day it quit, it was VERY cold.
--Car started fine as I left the fuel station, ran fine too, wouldn't start after sitting in sub 32 weather for 8 hours
--I got her to start by "drying" out the cylinders, spraying starting fluid in, then firing her up. This was after she spent the night in a heated shop.
--She continued to start with no problem during the week of above 32 degree weather
--The temperature has fallen below 32 again, she wont start again.
I was brave enough to drive her to school yesterday, I have a class that I leave work to go too, then come back to work. She did fine except for the irratic idle. Well enough that I was going to drive her to my night classes, home, and then back to work this morning. When I tried to leave yesterday afternoon, no cigar. The temperature had dropped drastically though between the time I got back from class and went to leave. Duration of about 4 hours.
Should I...
a) dump the tank, start over
b) get it started again, let it run through 1/2 the tank and refill with 93 octane
c) other?